MCP2517FD-H/SL

MCP2517FD External CAN FD Controller with SPI Interface Features General • • • • External CAN FD Controller with SPI Interface Arbitration Bit Rate up to 1 Mbps Data Bit Rate up to 8 Mbps CAN FD Controller modes - Mixed CAN 2.0B and CAN FD mode - CAN 2.0B mode • Conforms to ISO 11898-1:2015 Message FIFOs • 31 FIFOs, configurable as transmit or receive FIFOs • One Transmit Queue (TXQ) • Transmit Event FIFO (TEF) with 32 bit time stamp Message Transmission • Message transmission prioritization: - Based on priority bit field, and/or - Message with lowest ID gets transmitted first using the Transmit Queue (TXQ) • Programmable automatic retransmission attempts: unlimited, 3 attempts or disabled Oscillator Options • 40, 20 or 4 MHz crystal, or ceramic resonator; or external clock input • Clock output with prescaler SPI Interface • Up to 20 MHz SPI clock speed • Supports SPI modes 0,0 and 1,1 • Registers and bit fields are arranged in a way to enable efficient access via SPI Safety Critical Systems • SPI commands with CRC to detect noise on SPI interface • Error Correction Code (ECC) protected RAM Additional Features • GPIO pins: INT0 and INT1 can be configured as general purpose I/O • Open drain outputs: TXCAN, INT, INT0, and INT1 pins can be configured as push/pull or open drain outputs Package Types MCP2517FD SOIC14 Message Reception • 32 Flexible Filter and Mask Objects • Each object can be configured to filter either: - Standard ID + first 18 data bits, or - Extended ID • 32-bit Time Stamp Special Features • VDD: 2.7 to 5.5V • Active current: max. 20 mA at 5.5 V, 40 MHz CAN clock • Sleep current: 10 µA, typical • Message objects are located in RAM: 2 KB • Up to 3 configurable interrupt pins • Bus Health Diagnostics and Error counters • Transceiver standby control • Start of frame pin for indicating the beginning of messages on the bus • Temperature ranges: - High (H): –40°C to +150°C TXCAN 1 14 VDD RXCAN 2 13 nCS CLKO/SOF 3 12 SDO INT 4 11 SDI OSC2 5 10 SCK OSC1 6 9 INT0/GPIO0/XSTBY VSS 7 8 INT1/GPIO1 MCP2517FD VDFN14 with wettable flanks* TXCAN 1 14 VDD RXCAN 2 13 nCS CLKO/SOF 3 12 SDO 11 SDI INT 4 EP* OSC2 5 10 SCK OSC1 6 9 INT0/GPIO0/XSTBY VSS 7 8 INT1/GPIO1 *VDFN14 includes an Exposed Thermal Pad (EP); see Table 1-1  2017-2018 Microchip Technology Inc. DS20005688B-page 1 MCP2517FD 1.0 DEVICE OVERVIEW 1.1 The MCP2517FD is a cost-effective and small-footprint CAN FD controller that can be easily added to a microcontroller with an available SPI interface. Therefore, a CAN FD channel can be easily added to a microcontroller that is either lacking a CAN FD peripheral, or that doesn’t have enough CAN FD channels. The MCP2517FD supports both, CAN frames in the Classical format (CAN2.0B) and CAN Flexible Data Rate (CAN FD) format, as specified in ISO 118981:2015. Block Diagram Figure 1.1 shows the block diagram of the MCP2517FD. The MCP2517FD contains the following main blocks: • The CAN FD Controller module implements the CAN FD protocol and contains the FIFOs, and Filters. • The SPI interface is used to control the device by accessing SFRs and RAM. • The RAM controller arbitrates the RAM accesses between the SPI and CAN FD Controller module. • The Message RAM is used to store the data of the Message Objects. • The oscillator generates the CAN clock. • The Internal LDO and POR circuit. • The I/O control. Note 1: This data sheet summarizes the features of the MCP2517FD. It is not intended to be a comprehensive reference source. To complement the information in this data sheet, refer to the related section of the “MCP25xxFD Family Reference Manual”. FIGURE 1-1: MCP2517FD BLOCK DIAGRAM VDD Internal LDO VSS nCS SPI Interface SCK SDI POR SDO CLKO/SOF Message RAM RAM Controller I/O INT INT0/GPIO0/XSTBY INT1/GPIO1 OSC1 OSC2 DS20005688B-page 2 Oscillator CAN FD Controller Module RX Filter RXCAN TXCAN  2017-2018 Microchip Technology Inc. MCP2517FD 1.2 Pin Out Description Table 1-1 describes the functions of the pins. TABLE 1-1: Pin Name MCP2517FD STANDARD PINOUT VERSION SOIC VDFN Pin Type Description TXCAN 1 1 O Transmit output to CAN FD transceiver RXCAN 2 2 I Receive input from CAN FD transceiver CLKO/SOF 3 3 O Clock output/Start of Frame output INT 4 4 O Interrupt output (active low) OSC2 5 5 O External oscillator output OSC1 6 6 I External oscillator input VSS 7 7 P INT1/GPIO1 8 8 I/O RX Interrupt output (active low)/GPIO Ground INT0/GPIO0/ XSTBY 9 9 I/O TX Interrupt output (active low)/GPIO/ Transceiver Standby output SCK 10 10 I SDI 11 11 I SPI data input SDO 12 12 O SPI data output SPI clock input nCS 13 13 I SPI chip select input VDD 14 14 P Positive Supply EP - 15 P Exposed Pad; connect to VSS Legend: P = Power, I = Input, O = Output  2017-2018 Microchip Technology Inc. DS20005688B-page 3 MCP2517FD 1.3 The VDD of the CAN FD transceiver is connected to 5V. Typical Application The SPI interface is used to configure and control the CAN FD controller. Figure 1-2 shows an example of a typical application of the MCP2517FD. In this example, the microcontroller operates at 3.3V. The MCP2517FD signals interrupts to the microcontroller using INT, INT0 and INT1. Interrupts need to be cleared by the microcontroller through SPI. The MCP2517FD interfaces directly with microcontrollers operating at 2.7V to 5.5V. In addition, the MCP2517FD connects directly to high-speed CAN FD transceivers. There are no external level shifters required when connecting VDD of the MCP2517FD and the microcontroller to VIO of the transceiver. FIGURE 1-2: VBAT The CLKO pin provides the clock to the microcontroller. MCP2517FD INTERFACING WITH A 3.3V MICROCONTROLLER 5V LDO 3.3V LDO 0.1 μF VSS DS20005688B-page 4 VDD VIO RA0 nCS TXCAN TXD SCK SCK RXCAN RXD SDO SI SDI SO INT0 INT INT1 INT0 INT2 INT1 OSC1 CLKO STBY MCP2517FD PIC® VDD 0.1 μF 0.1 μF $7$ 0.1 μF VSS OSC2 OSC1 CANH VDD CANH 120 ȍ CANL CANL 22 pF 22 pF VSS  2017-2018 Microchip Technology Inc. MCP2517FD 2.0 CAN FD CONTROLLER MODULE Figure 2-1 shows the main blocks of the CAN FD Controller module: • The CAN FD Controller module has multiple modes: - Configuration - Normal CAN FD - Normal CAN 2.0 - Sleep - Listen Only - Restricted Operation - Internal and External Loop back modes • The CAN FD Bit Stream Processor (BSP) implements the Medium Access Control of the CAN FD protocol described in ISO 11898-1:2015. It serializes and de-serializes the bit stream, encodes and decodes the CAN FD frames, manages the medium access, acknowledges frames, and detects and signals errors. • The TX Handler prioritizes the messages that are requested for transmission by the Transmit FIFOs. It uses the RAM Interface to fetch the transmit data from RAM and provides it to the BSP for transmission. • The BSP provides received messages to the RX Handler. The RX Handler uses the Acceptance Filter to filter out messages that shall be stored into Receive FIFOs. It uses the RAM Interface to store received data into RAM. FIGURE 2-1: • Each FIFO can be configured either as a Transmit or Receive FIFO. The FIFO Control keeps track of the FIFO Head and Tail, and calculates the User Address. For a TX FIFO, the User Address points to the address in RAM where the data for the next transmit message shall be stored. For a RX FIFO, the User Address points to the address in RAM where the data of the next receive message shall be read. The User notifies the FIFO that a message was written to or read from RAM by incrementing the Head/Tail of the FIFO. • The Transmit Queue (TXQ) is a special transmit FIFO that transmits the messages based on the ID of the messages stored in the queue. • The Transmit Event FIFO (TEF) stores the message IDs of the transmitted messages. • A free-running Time Base Counter is used to time stamp received messages. Messages in the TEF can also be time stamped. • The CAN FD Controller module generates interrupts when new messages are received or when messages were transmitted successfully. • The Special Function Registers (SFR) are used to control and to read the status of the CAN FD Controller module. Note 1: This data sheet summarizes the features of the CAN FD Controller module. It is not intended to be a comprehensive reference source. To complement the information in this data sheet, refer to the related section of the “MCP25xxFD Family Reference Manual”. CAN FD CONTROLLER MODULE BLOCK DIAGRAM Mode Control SFR Time Stamping TBC RAM Interface FIFO Control TXQ Control TX Handler TX Prioritization RX Handler Acceptance Filter TEF Control Interrupt Control Error Handling Diagnostics CAN FD Protocol Bit Stream Processor  2017-2018 Microchip Technology Inc. DS20005688B-page 5 MCP2517FD NOTES: DS20005688B-page 6  2017-2018 Microchip Technology Inc. MCP2517FD 3.0 MEMORY ORGANIZATION Figure 3-1 illustrates the main sections of the memory and its address ranges: • MCP2517FD Special Function Registers (SFR) • CAN FD Controller Module SFR • Message Memory (RAM) The SFR are 32 bit wide. The LSB is located at the lower address, e.g., the LSB of C1CON is located at address 0x000, while its MSB is located at address 0x003. Table 3-1 lists the MCP2517FD specific registers. The first column contains the address of the SFR. Table 3-2 lists the registers of the CAN FD Controller Module. The first column contains the address of the SFR. FIGURE 3-1: MSB Address 0x003 MEMORY MAP LSB Address 32 bit MSB LSB 0x000 CAN FD Controller Module SFR (752 BYTE) 0x2EF 0x2F3 0x2EC 0x2F0 Unimplemented (272 BYTE) 0x3FF 0x403 0x3FC 0x400 RAM (2 KBYTE) 0xBFF 0xC03 0xBFC 0xC00 Unimplemented (512 BYTE) 0xDFF 0xE03 0xDFC 0xE00 MCP2517FD SFR (20 BYTE) 0xE13 0xE17 0xE10 0xE14 Reserved (492 BYTE) 0xFFF  2017-2018 Microchip Technology Inc. 0xFFC DS20005688B-page 7 MCP2517FD TABLE 3-1: Address MCP2517FD REGISTER SUMMARY Name Bit 31/23/15/7 Bit 30/22/14/6 Bit 29/21/13/5 Bit 28/20/12/4 Bit 27/19/11/3 Bit 26/18/10/2 Bit 25/17/9/1 Bit 24/16/8/0 — 31:24 — — — — — — — E02 23:16 — — — — — — — — E01 15:8 — — — SCLKRDY — OSCRDY — PLLRDY PLLEN E03 OSC E00( 1) IOCON E04 CRC 7:0 — SCLKDIV — OSCDIS — 31:24 — INTOD CLKODIV SOF TXCANOD — — PM1 PM0 23:16 — — — — — — GPIO1 GPIO0 15:8 — — — — — — LAT1 LAT0 7:0 — XSTBYEN — — — — TRIS1 TRIS0 31:24 — — — — — — FERRIE CRCERRIE 23:16 — — — — — — FERRIF CRCERRIF 15:8 E08 CRC 7:0 ECCCON E0C ECCSTAT CRC 31:24 — — — — — — — — 23:16 — — — — — — — — 15:8 — 7:0 — — — — DEDIE SECIE ECCEN 31:24 — — — — 15:8 — — — — — — — — 7:0 — — — — — DEDIF SECIF — PARITY 23:16 E10 — ERRADDR ERRADDR Note 1: The lower order byte of the 32-bit register resides at the low-order address. DS20005688B-page 8  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 3-2: Addr. 03 CAN FD CONTROLLER MODULE REGISTER SUMMARY Bit 31/23/15/7 Name C1CON 31:24 Bit 30/22/14/6 Bit 29/21/13/5 23:16 01 15:8 — — — 7:0 — PXEDIS ISOCRCEN C1NBTCFG OPMOD C1DBTCFG 08 C1TDC 0C C1TBC 10 STEF BRSDIS BUSY 14 18 C1INT 1C C1RXIF — 7:0 — 24 C1RXOVIF RTXAT WAKFIL TSEG2 SJW 23:16 — — — 15:8 — — — — 7:0 — — — — 31:24 — — — — — — 23:16 — — — — — — 15:8 — 7:0 — TSEG1 TSEG2 SJW EDGFLTEN SID11EN TDCMOD TDCO — TDCV 31:24 TBC 23:16 TBC 15:8 TBC TBC 31:24 — — — — — — — — 23:16 — — — — — TSRES TSEOF TBCEN 15:8 — — — — — — TBCPRE TBCPRE 31:24 — 23:16 — 15:8 — 7:0 — 31:24 IVMIE WAKIE CERRIE SERRIE RXOVIE TXATIE SPICRCIE 23:16 — — — TEFIE MODIE TBCIE RXIE TXIE 15:8 IVMIF WAKIF CERRIF SERRIF RXOVIF TXATIF SPICRCIF ECCIF 7:0 — — — TEFIF MODIF TBCIF RXIF TXIF RXCODE TXCODE — — FILHIT ICODE 31:24 RFIF 23:16 RFIF ECCIE RFIF RFIF 31:24 TFIF 23:16 TFIF 15:8 TFIF 7:0 TFIF 31:24 RFOVIF 23:16 RFOVIF 7:0 C1TXATIF ESIGM WFT BRP 15:8 28 REQOP SERR2LOM DNCNT 31:24 7:0 C1TXIF Bit 24/16/8/0 TSEG1 15:8 15:8 20 Bit 25/17/9/1 BRP 7:0 C1VEC Bit 26/18/10/2 ABAT 7:0 C1TSCON 2C TXQEN 31:24 23:16 04 Bit 27/19/11/3 TXBWS 02 00[ 1] Bit 28/20/12/4 — RFOVIF RFOVIF 31:24 TFATIF 23:16 TFATIF 15:8 TFATIF 7:0 TFATIF — Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0.  2017-2018 Microchip Technology Inc. DS20005688B-page 9 MCP2517FD TABLE 3-2: Addr. CAN FD CONTROLLER MODULE REGISTER SUMMARY (CONTINUED) Bit 31/23/15/7 Name C1TXREQ Bit 30/22/14/6 Bit 29/21/13/5 31:24 TXREQ TXREQ 15:8 TXREQ 7:0 TXREQ — — — — — — 23:16 — — TXBO TXBP RXBP TXWARN RXWARN EWARN 15:8 TEC 7:0 REC 31:24 DTERRCNT 23:16 DRERRCNT 15:8 NTERRCNT 7:0 NRERRCNT 31:24 DLCMM ESI DCRCERR DSTUFERR DFORMERR — DBIT1ERR DBIT0ERR 23:16 TXBOERR — NCRCERR NSTUFERR NFORMERR NACKERR NBIT1ERR NBIT0ERR 15:8 EFMSGCNT 7:0 — — — 23:16 — — — — — — — — 15:8 — — — — — FRESET — UINC 7:0 — — TEFTSEN — TEFOVIE TEFFIE TEFHIE TEFNEIE — — — — — — — — 23:16 — — — — — — — — 15:8 — — — — — — — — 7:0 — — — — TEFOVIF TEFFIF TEFHIF TEFNEIF 31:24 TEFUA 23:16 TEFUA 15:8 TEFUA 48 Reserved( 2) 7:0 TEFUA 31:24 Reserved 23:16 Reserved 15:8 Reserved 4C 7:0 C1TXQCON PLSIZE — FSIZE TXAT TXPRI 15:8 — — — — — FRESET TXREQ UINC 7:0 TXEN — — TXATIE — TXQEIE — TXQNIE 31:24 — — — — — — — — 23:16 — — — — — — — — 15:8 — — — 7:0 TXABT TXLARB TXERR — TXQNIF 50 54 C1TXQUA Reserved 31:24 23:16 C1TXQSTA FSIZE 31:24 44 C1TEFUA EFMSGCNT 31:24 40 C1TEFSTA Bit 24/16/8/0 — 3C C1TEFCON Bit 25/17/9/1 — 38 C1BDIAG1 Bit 26/18/10/2 31:24 34 C1BDIAG0 Bit 27/19/11/3 23:16 30 C1TREC Bit 28/20/12/4 TXQCI TXATIF — 31:24 TXQUA 23:16 TXQUA 15:8 TXQUA 7:0 TXQUA 58 TXQEIF Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0. DS20005688B-page 10  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 3-2: Addr. CAN FD CONTROLLER MODULE REGISTER SUMMARY (CONTINUED) Bit 31/23/15/7 Name C1FIFOCON1 31:24 23:16 5C C1FIFOSTA1 60 C1FIFOUA1 64 Bit 30/22/14/6 Bit 29/21/13/5 Bit 28/20/12/4 Bit 27/19/11/3 PLSIZE — Bit 26/18/10/2 Bit 25/17/9/1 Bit 24/16/8/0 FSIZE TXAT TXPRI 15:8 — — — — — FRESET TXREQ UINC 7:0 TXEN RTREN RXTSEN TXATIE RXOVIE TFERFFIE TFHRFHIE TFNRFNIE 31:24 — — — — — — — — 23:16 — — — — — — — — 15:8 — — — 7:0 TXABT TXLARB TXERR TFHRFHIF TFNRFNIF FIFOCI TXATIF RXOVIF 31:24 FIFOUA 23:16 FIFOUA 15:8 FIFOUA 7:0 FIFOUA 68 C1FIFOCON2 31:0 same as C1FIFOCON1 6C C1FIFOSTA2 31:0 same as C1FIFOSTA1 70 C1FIFOUA2 31:0 same as C1FIFOUA1 74 C1FIFOCON3 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 78 C1FIFOSTA3 31:0 7C C1FIFOUA3 31:0 same as C1FIFOUA1 80 C1FIFOCON4 31:0 same as C1FIFOCON1 84 C1FIFOSTA4 31:0 same as C1FIFOSTA1 88 C1FIFOUA4 31:0 same as C1FIFOUA1 8C C1FIFOCON5 31:0 same as C1FIFOCON1 90 C1FIFOSTA5 31:0 same as C1FIFOSTA1 94 C1FIFOUA5 31:0 same as C1FIFOUA1 98 C1FIFOCON6 31:0 same as C1FIFOCON1 9C C1FIFOSTA6 31:0 same as C1FIFOSTA1 A0 C1FIFOUA6 31:0 same as C1FIFOUA1 A4 C1FIFOCON7 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 A8 C1FIFOSTA7 31:0 AC C1FIFOUA7 31:0 same as C1FIFOUA1 B0 C1FIFOCON8 31:0 same as C1FIFOCON1 B4 C1FIFOSTA8 31:0 same as C1FIFOSTA1 B8 C1FIFOUA8 31:0 same as C1FIFOUA1 BC C1FIFOCON9 31:0 same as C1FIFOCON1 C0 C1FIFOSTA9 31:0 same as C1FIFOSTA1 C4 C1FIFOUA9 31:0 same as C1FIFOUA1 C8 C1FIFOCON10 31:0 same as C1FIFOCON1 CC C1FIFOSTA10 31:0 same as C1FIFOSTA1 D0 C1FIFOUA10 31:0 same as C1FIFOUA1 D4 C1FIFOCON11 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 D8 C1FIFOSTA11 31:0 DC C1FIFOUA11 31:0 same as C1FIFOUA1 E0 C1FIFOCON12 31:0 same as C1FIFOCON1 E4 C1FIFOSTA12 31:0 same as C1FIFOSTA1 E8 C1FIFOUA12 31:0 same as C1FIFOUA1 EC C1FIFOCON13 31:0 same as C1FIFOCON1 F0 C1FIFOSTA13 31:0 same as C1FIFOSTA1 F4 C1FIFOUA13 31:0 same as C1FIFOUA1 F8 C1FIFOCON14 31:0 same as C1FIFOCON1 FC C1FIFOSTA14 31:0 same as C1FIFOSTA1 100 C1FIFOUA14 31:0 same as C1FIFOUA1 TFERFFIF Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0.  2017-2018 Microchip Technology Inc. DS20005688B-page 11 MCP2517FD TABLE 3-2: Addr. CAN FD CONTROLLER MODULE REGISTER SUMMARY (CONTINUED) Bit 31/23/15/7 Name Bit 30/22/14/6 Bit 29/21/13/5 Bit 28/20/12/4 Bit 27/19/11/3 104 C1FIFOCON15 31:0 same as C1FIFOCON1 108 C1FIFOSTA15 31:0 same as C1FIFOSTA1 10C C1FIFOUA15 31:0 same as C1FIFOUA1 110 C1FIFOCON16 31:0 same as C1FIFOCON1 114 C1FIFOSTA16 31:0 same as C1FIFOSTA1 118 C1FIFOUA16 31:0 same as C1FIFOUA1 11C C1FIFOCON17 31:0 same as C1FIFOCON1 120 C1FIFOSTA17 31:0 same as C1FIFOSTA1 124 C1FIFOUA17 31:0 same as C1FIFOUA1 128 C1FIFOCON18 31:0 same as C1FIFOCON1 12C C1FIFOSTA18 31:0 same as C1FIFOSTA1 130 C1FIFOUA18 31:0 same as C1FIFOUA1 134 C1FIFOCON19 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 138 C1FIFOSTA19 31:0 13C C1FIFOUA19 31:0 same as C1FIFOUA1 140 C1FIFOCON20 31:0 same as C1FIFOCON1 144 C1FIFOSTA20 31:0 same as C1FIFOSTA1 148 C1FIFOUA20 31:0 same as C1FIFOUA1 14C C1FIFOCON21 31:0 same as C1FIFOCON1 150 C1FIFOSTA21 31:0 same as C1FIFOSTA1 154 C1FIFOUA21 31:0 same as C1FIFOUA1 158 C1FIFOCON22 31:0 same as C1FIFOCON1 15C C1FIFOSTA22 31:0 same as C1FIFOSTA1 160 C1FIFOUA22 31:0 same as C1FIFOUA1 164 C1FIFOCON23 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 168 C1FIFOSTA23 31:0 16C C1FIFOUA23 31:0 same as C1FIFOUA1 170 C1FIFOCON24 31:0 same as C1FIFOCON1 174 C1FIFOSTA24 31:0 same as C1FIFOSTA1 178 C1FIFOUA24 31:0 same as C1FIFOUA1 17C C1FIFOCON25 31:0 same as C1FIFOCON1 180 C1FIFOSTA25 31:0 same as C1FIFOSTA1 184 C1FIFOUA25 31:0 same as C1FIFOUA1 188 C1FIFOCON26 31:0 same as C1FIFOCON1 18C C1FIFOSTA26 31:0 same as C1FIFOSTA1 190 C1FIFOUA26 31:0 same as C1FIFOUA1 194 C1FIFOCON27 31:0 same as C1FIFOCON1 same as C1FIFOSTA1 198 C1FIFOSTA27 31:0 19C C1FIFOUA27 31:0 same as C1FIFOUA1 1A0 C1FIFOCON28 31:0 same as C1FIFOCON1 1A4 C1FIFOSTA28 31:0 same as C1FIFOSTA1 1A8 C1FIFOUA28 31:0 same as C1FIFOUA1 1AC C1FIFOCON29 31:0 same as C1FIFOCON1 1B0 C1FIFOSTA29 31:0 same as C1FIFOSTA1 1B4 C1FIFOUA29 31:0 same as C1FIFOUA1 1B8 C1FIFOCON30 31:0 same as C1FIFOCON1 1BC C1FIFOSTA30 31:0 same as C1FIFOSTA1 1C0 C1FIFOUA30 31:0 same as C1FIFOUA1 1C4 C1FIFOCON31 31:0 same as C1FIFOCON1 1C8 C1FIFOSTA31 31:0 same as C1FIFOSTA1 1CC C1FIFOUA31 31:0 same as C1FIFOUA1 Bit 26/18/10/2 Bit 25/17/9/1 Bit 24/16/8/0 Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0. DS20005688B-page 12  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 3-2: Addr. CAN FD CONTROLLER MODULE REGISTER SUMMARY (CONTINUED) Name C1FLTCON0 1D0 C1FLTCON1 1D4 C1FLTCON2 1D8 C1FLTCON3 1DC C1FLTCON4 1E0 C1FLTCON5 1E4 C1FLTCON6 1E8 C1FLTCON7 1EC C1FLTOBJ0 Bit 31/23/15/7 Bit 30/22/14/6 Bit 29/21/13/5 FLTEN3 — — F3BP FLTEN2 — — F2BP 15:8 FLTEN1 — — F1BP 7:0 FLTEN0 — — F0BP 31:24 FLTEN7 — — F7BP 23:16 FLTEN6 — — F6BP 15:8 FLTEN5 — — F5BP 7:0 FLTEN4 — — F4BP 31:24 FLTEN11 — — F11BP 23:16 FLTEN10 — — F10BP 15:8 FLTEN9 — — F9BP 7:0 FLTEN8 — — F8BP 31:24 FLTEN15 — — F15BP 23:16 FLTEN14 — — F14BP 15:8 FLTEN13 — — F13BP 7:0 FLTEN12 — — F12BP 31:24 FLTEN19 — — F19BP 23:16 FLTEN18 — — F18BP 15:8 FLTEN17 — — F17BP 7:0 FLTEN16 — — F16BP 31:24 FLTEN23 — — F23BP 23:16 FLTEN22 — — F22BP 15:8 FLTEN21 — — F21BP 7:0 FLTEN20 — — F20BP 31:24 FLTEN27 — — F27BP 23:16 FLTEN26 — — F26BP 15:8 FLTEN25 — — F25BP 7:0 FLTEN24 — — F24BP 31:24 FLTEN31 — — F31BP 23:16 FLTEN30 — — F30BP 15:8 FLTEN29 — — F29BP 7:0 FLTEN28 — — F28BP 31:24 — EXIDE SID11 31:24 Bit 25/17/9/1 Bit 24/16/8/0 EID EID EID 7:0 SID SID — MIDE MSID11 23:16 15:8 1F4 Bit 26/18/10/2 31:24 15:8 C1MASK0 Bit 27/19/11/3 23:16 23:16 1F0 Bit 28/20/12/4 MEID MEID MEID MSID 7:0 MSID same as C1FLTOBJ0 1F8 C1FLTOBJ1 31:0 1FC C1MASK1 31:0 same as C1MASK0 200 C1FLTOBJ2 31:0 same as C1FLTOBJ0 204 C1MASK2 31:0 same as C1MASK0 208 C1FLTOBJ3 31:0 same as C1FLTOBJ0 20C C1MASK3 31:0 same as C1MASK0 210 C1FLTOBJ4 31:0 same as C1FLTOBJ0 214 C1MASK4 31:0 same as C1MASK0 218 C1FLTOBJ5 31:0 same as C1FLTOBJ0 21C C1MASK5 31:0 same as C1MASK0 Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0.  2017-2018 Microchip Technology Inc. DS20005688B-page 13 MCP2517FD TABLE 3-2: Addr. CAN FD CONTROLLER MODULE REGISTER SUMMARY (CONTINUED) Bit 31/23/15/7 Name Bit 30/22/14/6 Bit 29/21/13/5 Bit 28/20/12/4 Bit 27/19/11/3 220 C1FLTOBJ6 31:0 224 C1MASK6 31:0 same as C1MASK0 228 C1FLTOBJ7 31:0 same as C1FLTOBJ0 22C C1MASK7 31:0 same as C1MASK0 230 C1FLTOBJ8 31:0 same as C1FLTOBJ0 234 C1MASK8 31:0 same as C1MASK0 238 C1FLTOBJ9 31:0 same as C1FLTOBJ0 23C C1MASK9 31:0 same as C1MASK0 240 C1FLTOBJ10 31:0 same as C1FLTOBJ0 244 C1MASK10 31:0 same as C1MASK0 248 C1FLTOBJ11 31:0 same as C1FLTOBJ0 24C C1MASK11 31:0 same as C1MASK0 250 C1FLTOBJ12 31:0 same as C1FLTOBJ0 254 C1MASK12 31:0 same as C1MASK0 258 C1FLTOBJ13 31:0 same as C1FLTOBJ0 25C C1MASK13 31:0 same as C1MASK0 260 C1FLTOBJ14 31:0 same as C1FLTOBJ0 264 C1MASK14 31:0 same as C1MASK0 268 C1FLTOBJ15 31:0 same as C1FLTOBJ0 26C C1MASK15 31:0 same as C1MASK0 270 C1FLTOBJ16 31:0 same as C1FLTOBJ0 274 C1MASK16 31:0 same as C1MASK0 278 C1FLTOBJ17 31:0 same as C1FLTOBJ0 27C C1MASK17 31:0 same as C1MASK0 280 C1FLTOBJ18 31:0 same as C1FLTOBJ0 284 C1MASK18 31:0 same as C1MASK0 288 C1FLTOBJ19 31:0 same as C1FLTOBJ0 28C C1MASK19 31:0 same as C1MASK0 290 C1FLTOBJ20 31:0 same as C1FLTOBJ0 294 C1MASK20 31:0 same as C1MASK0 298 C1FLTOBJ21 31:0 same as C1FLTOBJ0 29C C1MASK21 31:0 same as C1MASK0 2A0 C1FLTOBJ22 31:0 same as C1FLTOBJ0 2A4 C1MASK22 31:0 same as C1MASK0 2A8 C1FLTOBJ23 31:0 same as C1FLTOBJ0 2AC C1MASK23 31:0 same as C1MASK0 2B0 C1FLTOBJ24 31:0 same as C1FLTOBJ0 2B4 C1MASK24 31:0 same as C1MASK0 2B8 C1FLTOBJ25 31:0 same as C1FLTOBJ0 2BC C1MASK25 31:0 same as C1MASK0 2C0 C1FLTOBJ26 31:0 same as C1FLTOBJ0 2C4 C1MASK26 31:0 same as C1MASK0 2C8 C1FLTOBJ27 31:0 same as C1FLTOBJ0 2CC C1MASK27 31:0 same as C1MASK0 2D0 C1FLTOBJ28 31:0 same as C1FLTOBJ0 2D4 C1MASK28 31:0 same as C1MASK0 2D8 C1FLTOBJ29 31:0 same as C1FLTOBJ0 Bit 26/18/10/2 Bit 25/17/9/1 Bit 24/16/8/0 same as C1FLTOBJ0 2DC C1MASK29 31:0 same as C1MASK0 2E0 C1FLTOBJ30 31:0 same as C1FLTOBJ0 2E4 C1MASK30 31:0 same as C1MASK0 2E8 C1FLTOBJ31 31:0 same as C1FLTOBJ0 2EC C1MASK31 31:0 same as C1MASK0 Note 1: The lower order byte of the 32-bit register resides at the low-order address. 2: Reserved register reads 0. DS20005688B-page 14  2017-2018 Microchip Technology Inc. MCP2517FD 3.1 • • • • • MCP2517FD Specific Registers Register 3-1: OSC Register 3-2: IOCON Register 3-3: CRC Register 3-4: ECCCON Register 3-5: ECCSTAT TABLE 3-3: Symbol R W U S C REGISTER LEGEND Description Readable bit Writable bit Unimplemented bit, read as ‘0’ Settable bit Clearable bit Symbol HC HS 1 0 x Description Cleared by Hardware only Set by Hardware only Bit is set at Reset Bit is cleared at Reset Bit is unknown at Reset EXAMPLE 3-1: R/W - 0 indicates the bit is both readable and writable, and reads ‘0’ after a Reset.  2017-2018 Microchip Technology Inc. DS20005688B-page 15 MCP2517FD REGISTER 3-1: OSC – MCP2517FD OSCILLATOR CONTROL REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 U-0 U-0 R-0 U-0 R-0 U-0 R-0 — — — SCLKRDY — OSCRDY — PLLRDY bit 15 bit 8 U-0 R/W-1 — R/W-1 CLKODIV R/W-0 U-0 HS/C-0 U-0 R/W-0 SCLKDIV( 1) — OSCDIS( 2) — PLLEN( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-13 Unimplemented: Read as ‘0’ bit 12 SCLKRDY: Synchronized SCLKDIV bit 1 = SCLKDIV 1 0 = SCLKDIV 0 bit 11 Unimplemented: Read as ‘0’ bit 10 OSCRDY: Clock Ready 1 = Clock is running and stable 0 = Clock not ready or off bit 9 Unimplemented: Read as ‘0’ bit 8 PLLRDY: PLL Ready 1 = PLL Locked 0 = PLL not ready bit 7 Unimplemented: Read as ‘0’ bit 6-5 CLKODIV: Clock Output Divisor 11 =CLKO is divided by 10 10 =CLKO is divided by 4 01 =CLKO is divided by 2 00 =CLKO is divided by 1 bit 4 SCLKDIV: System Clock Divisor( 1) 1 = SCLK is divided by 2 0 = SCLK is divided by 1 bit 3 Unimplemented: Read as ‘0’ bit 2 OSCDIS: Clock (Oscillator) Disable( 2) 1 = Clock disabled, the device is in Sleep mode. 0 = Enable Clock Note 1: 2: x = Bit is unknown This bit can only be modified in Configuration mode. Clearing OSCDIS while in Sleep mode will wake-up the device and put it back in Configuration mode. DS20005688B-page 16  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-1: OSC – MCP2517FD OSCILLATOR CONTROL REGISTER (CONTINUED) bit 1 Unimplemented: Read as ‘0’ bit 0 PLLEN: PLL Enable( 1) 1 = System Clock from 10x PLL 0 = System Clock comes directly from XTAL oscillator Note 1: 2: This bit can only be modified in Configuration mode. Clearing OSCDIS while in Sleep mode will wake-up the device and put it back in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 17 MCP2517FD REGISTER 3-2: IOCON – INPUT/OUTPUT CONTROL REGISTER U-0 R/W-0 R/W-0 R/W-0 U-0 U-0 R/W-1 R/W-1 — INTOD SOF TXCANOD — — PM1 PM0 bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x — — — — — — GPIO1 GPIO0 bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 U-0 R/W-x R/W-x — — — — — — LAT1 LAT0 bit 15 bit 8 U-0 R/W-0 U-0 U-0 U-0 U-0 R/W-1 R/W-1 — XSTBYEN — — — — TRIS1( 1) TRIS0( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31 Unimplemented: Read as ‘0’ bit 30 INTOD: Interrupt pins Open Drain Mode 1 = Open Drain Output 0 = Push/Pull Output bit 29 SOF: Start-Of-Frame signal 1 = SOF signal on CLKO pin 0 = Clock on CLKO pin bit 28 TXCANOD: TXCAN Open Drain Mode 1 = Open Drain Output 0 = Push/Pull Output x = Bit is unknown bit 27-26 Unimplemented: Read as ‘0’ bit 25 PM1: GPIO Pin Mode 1 = Pin is used as GPIO1 0 = Interrupt Pin INT1, asserted when CiINT.RXIF and RXIE are set bit 24 PM0: GPIO Pin Mode 1 = Pin is used as GPIO0 0 = Interrupt Pin INT0, asserted when CiINT.TXIF and TXIE are set bit 23-18 Unimplemented: Read as ‘0’ bit 17 GPIO1: GPIO1 Status 1 = VGPIO1 > VIH 0 = VGPIO1 < VIL bit 16 GPIO0: GPIO0 Status 1 = VGPIO0 > VIH 0 = VGPIO0 < VIL bit 15-10 Note 1: Unimplemented: Read as ‘0’ If PMx = 0, TRISx will be ignored and the pin will be an output. DS20005688B-page 18  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-2: IOCON – INPUT/OUTPUT CONTROL REGISTER (CONTINUED) bit 9 LAT1: GPIO1 Latch 1 = Drive Pin High 0 = Drive Pin Low bit 8 LAT0: GPIO0 Latch 1 = Drive Pin High 0 = Drive Pin Low bit 7 Unimplemented: Read as ‘0’ bit 6 XSTBYEN: Enable Transceiver Standby Pin Control 1 = XSTBY control enabled 0 = XSTBY control disabled bit 5-2 Unimplemented: Read as ‘0’ bit 1 TRIS1: GPIO1 Data Direction( 1) 1 = Input Pin 0 = Output Pin bit 0 TRIS0: GPIO0 Data Direction( 1) 1 = Input Pin 0 = Output Pin Note 1: If PMx = 0, TRISx will be ignored and the pin will be an output.  2017-2018 Microchip Technology Inc. DS20005688B-page 19 MCP2517FD REGISTER 3-3: CRC – CRC REGISTER U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 — — — — — — FERRIE CRCERRIE bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 HS/C-0 HS/C-0 — — — — — — FERRIF CRCERRIF bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 CRC bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 CRC bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-26 Unimplemented: Read as ‘0’ bit 25 FERRIE: CRC Command Format Error Interrupt Enable bit 24 CRCERRIE: CRC Error Interrupt Enable bit 23-18 Unimplemented: Read as ‘0’ bit 17 FERRIF: CRC Command Format Error Interrupt Flag 1 = Number of Bytes mismatch during “SPI with CRC” command occurred 0 = No SPI CRC command format error occurred bit 16 CRCERRIF: CRC Error Interrupt Flag 1 = CRC mismatch occurred 0 = No CRC error has occurred bit 15-0 CRC: Cycle Redundancy Check from last CRC mismatch DS20005688B-page 20  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-4: ECCCON – ECC CONTROL REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 R/W-0 R/W-0 R/W-0 — R/W-0 R/W-0 R/W-0 R/W-0 PARITY bit 15 bit 8 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 — — — — — DEDIE SECIE ECCEN bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-15 Unimplemented: Read as ‘0’ bit 14-8 PARITY: Parity bits used during write to RAM when ECC is disabled bit 7-3 Unimplemented: Read as ‘0’ bit 2 DEDIE: Double Error Detection Interrupt Enable Flag bit 1 SECIE: Single Error Correction Interrupt Enable Flag bit 0 ECCEN: ECC Enable 1 = ECC enabled 0 = ECC disabled  2017-2018 Microchip Technology Inc. DS20005688B-page 21 MCP2517FD REGISTER 3-5: ECCSTAT – ECC STATUS REGISTER U-0 U-0 U-0 U-0 — — — — R-0 R-0 R-0 R-0 ERRADDR bit 31 bit 24 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 ERRADDR bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 15 bit 8 U-0 U-0 U-0 U-0 U-0 HS/C-0 HS/C-0 U-0 — — — — — DEDIF SECIF — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-28 Unimplemented: Read as ‘0’ bit 27-16 ERRADDR: Address where last ECC error occurred bit 15-3 Unimplemented: Read as ‘0’ bit 2 DEDIF: Double Error Detection Interrupt Flag 1 = Double Error was detected 0 = No Double Error Detection occurred bit 1 SECIF: Single Error Correction Interrupt Flag 1 = Single Error was corrected 0 = No Single Error occurred bit 0 Unimplemented: Read as ‘0’ DS20005688B-page 22 x = Bit is unknown  2017-2018 Microchip Technology Inc. MCP2517FD 3.2 CAN FD Controller Module Registers Configuration Registers • • • • • • Register 3-6: CiCON Register 3-7: CiNBTCFG Register 3-8: CiDBTCFG Register 3-9: CiTDC Register 3-10: CiTBC Register 3-11: CiTSCON Fifo Control and Status Registers • • • • • • • • • Register 3-22: CiTEFCON Register 3-23: CiTEFSTA Register 3-24: CiTEFUA Register 3-25: CiTXQCON Register 3-26: CiTXQSTA Register 3-27: CiTXQUA Register 3-28: CiFIFOCONm – m = 1 to 31 Register 3-29: CiFIFOSTAm – m = 1 to 31 Register 3-30: CiFIFOUAm – m = 1 to 31 Interrupt and Status Registers Filter Configuration and Control Registers • • • • • • • • Register 3-31: CiFLTCONm – m = 0 to 7 • Register 3-32: CiFLTOBJm – m = 0 to 31 • Register 3-33: CiMASKm – m = 0 to 31 Register 3-12: CiVEC Register 3-13: CiINT Register 3-14: CiRXIF Register 3-15: CiRXOVIF Register 3-16: CiTXIF Register 3-17: CiTXATIF Register 3-18: CiTXREQ Note: The ‘i’ shown in the register identifier denotes CANi, e.g., C1CON. The MCP2517FD contains one CAN FD Controller Module. Error and Diagnostic Registers • Register 3-19: CiTREC • Register 3-20: CiBDIAG0 • Register 3-21: CiBDIAG1 TABLE 3-4: REGISTER LEGEND Sym R W U S C Description Readable bit Writable bit Unimplemented bit, read as ‘0’ Settable bit Clearable bit Sym HC HS 1 0 x Description Cleared by Hardware only Set by Hardware only Bit is set at Reset Bit is cleared at Reset Bit is unknown at Reset EXAMPLE 3-2: R/W - 0 indicates the bit is both readable and writable, and reads ‘0’ after a Reset.  2017-2018 Microchip Technology Inc. DS20005688B-page 23 MCP2517FD REGISTER 3-6: R/W-0 CiCON – CAN CONTROL REGISTER R/W-0 R/W-0 R/W-0 TXBWS R/W-0 R/W-1 ABAT R/W-0 R/W-0 REQOP bit 31 bit 24 R-1 R-0 R-0 OPMOD R/W-1 R/W-1 R/W-0 R/W-0 R/W-0 TXQEN( 1) STEF( 1) SERR2LOM ESIGM( 1) RTXAT( 1) ( 1) bit 23 bit 16 U-0 U-0 U-0 R/W-0 R-0 — — — BRSDIS BUSY R/W-1 R/W-1 WFT R/W-1 WAKFIL( 1) bit 15 bit 8 U-0 R/W-1 R/W-1 — PXEDIS( 1) ISOCRCEN R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 DNCNT ( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-28 TXBWS: Transmit Bandwidth Sharing bits Delay between two consecutive transmissions (in arbitration bit times) 0000 = No delay 0001 = 2 0010 = 4 0011 = 8 0100 = 16 0101 = 32 0110 = 64 0111 = 128 1000 = 256 1001 = 512 1010 = 1024 1011 = 2048 1111-1100 = 4096 bit 27 ABAT: Abort All Pending Transmissions bit 1 = Signal all transmit FIFOs to abort transmission 0 = Module will clear this bit when all transmissions were aborted bit 26-24 REQOP: Request Operation Mode bits 000 = Set Normal CAN FD mode; supports mixing of CAN FD and Classic CAN 2.0 frames 001 = Set Sleep mode 010 = Set Internal Loopback mode 011 = Set Listen Only mode 100 = Set Configuration mode 101 = Set External Loopback mode 110 = Set Normal CAN 2.0 mode; possible error frames on CAN FD frames 111 = Set Restricted Operation mode Note 1: These bits can only be modified in Configuration mode. DS20005688B-page 24  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-6: CiCON – CAN CONTROL REGISTER (CONTINUED) bit 23-21 OPMOD: Operation Mode Status bits 000 = Module is in Normal CAN FD mode; supports mixing of CAN FD and Classic CAN 2.0 frames 001 = Module is in Sleep mode 010 = Module is in Internal Loopback mode 011 = Module is in Listen Only mode 100 = Module is in Configuration mode 101 = Module is in External Loopback mode 110 = Module is Normal CAN 2.0 mode; possible error frames on CAN FD frames 111 = Module is Restricted Operation mode bit 20 TXQEN: Enable Transmit Queue bit( 1) 1 = Enables TXQ and reserves space in RAM 0 = Don’t reserve space in RAM for TXQ bit 19 STEF: Store in Transmit Event FIFO bit( 1) 1 = Saves transmitted messages in TEF and reserves space in RAM 0 = Don’t save transmitted messages in TEF bit 18 SERR2LOM: Transition to Listen Only Mode on System Error bit( 1) 1 = Transition to Listen Only Mode 0 = Transition to Restricted Operation Mode bit 17 ESIGM: Transmit ESI in Gateway Mode bit( 1) 1 = ESI is transmitted recessive when ESI of message is high or CAN controller error passive 0 = ESI reflects error status of CAN controller bit 16 RTXAT: Restrict Retransmission Attempts bit( 1) 1 = Restricted retransmission attempts, CiFIFOCONm.TXAT is used 0 = Unlimited number of retransmission attempts, CiFIFOCONm.TXAT will be ignored bit 15-13 Unimplemented: Read as ‘0’ bit 12 BRSDIS: Bit Rate Switching Disable bit 1 = Bit Rate Switching is Disabled, regardless of BRS in the Transmit Message Object 0 = Bit Rate Switching depends on BRS in the Transmit Message Object bit 11 BUSY: CAN Module is Busy bit 1 = The CAN module is transmitting or receiving a message 0 = The CAN module is inactive bit 10-9 WFT: Selectable Wake-up Filter Time bits 00 = T00FILTER 01 = T01FILTER 10 = T10FILTER 11 = T11FILTER bit 8 WAKFIL: Enable CAN Bus Line Wake-up Filter bit( 1) 1 = Use CAN bus line filter for wake-up 0 = CAN bus line filter is not used for wake-up bit 7 Unimplemented: Read as ‘0’ bit 6 PXEDIS: Protocol Exception Event Detection Disabled bit( 1) A recessive “res bit” following a recessive FDF bit is called a Protocol Exception. 1 = Protocol Exception is treated as a Form Error. 0 = If a Protocol Exception is detected, the CAN FD Controller Module will enter Bus Integrating state. bit 5 ISOCRCEN: Enable ISO CRC in CAN FD Frames bit( 1) 1 = Include Stuff Bit Count in CRC Field and use Non-Zero CRC Initialization Vector according to ISO 11898-1:2015 0 = Do NOT include Stuff Bit Count in CRC Field and use CRC Initialization Vector with all zeros Note: Note 1: Please refer to Table 7-5. These bits can only be modified in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 25 MCP2517FD REGISTER 3-6: bit 4-0 Note 1: CiCON – CAN CONTROL REGISTER (CONTINUED) DNCNT: Device Net Filter Bit Number bits 10011-11111 = Invalid Selection (compare up to 18-bits of data with EID) 10010 = Compare up to data byte 2 bit 6 with EID17 ... 00001 = Compare up to data byte 0 bit 7 with EID0 00000 = Do not compare data bytes These bits can only be modified in Configuration mode. DS20005688B-page 26  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-7: R/W-0 CiNBTCFG – NOMINAL BIT TIME CONFIGURATION REGISTER R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 BRP bit 31 bit 24 R/W-0 R/W-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-0 TSEG1 bit 23 bit 16 U-0 R/W-0 R/W-0 R/W-0 — R/W-1 R/W-1 R/W-1 R/W-1 TSEG2 bit 15 bit 8 U-0 R/W-0 R/W-0 R/W-0 R/W-1 — R/W-1 R/W-1 R/W-1 SJW bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-24 BRP: Baud Rate Prescaler bits 1111 1111 = TQ = 256/Fsys ... 0000 0000 = TQ = 1/Fsys bit 23-16 TSEG1: Time Segment 1 bits (Propagation Segment + Phase Segment 1) 1111 1111 = Length is 256 x TQ ... 0000 0000 = Length is 1 x TQ bit 15 Unimplemented: Read as ‘0’ bit 14-8 TSEG2: Time Segment 2 bits (Phase Segment 2) 111 1111 = Length is 128 x TQ ... 000 0000 = Length is 1 x TQ bit 7 Unimplemented: Read as ‘0’ bit 6-0 SJW: Synchronization Jump Width bits 111 1111 = Length is 128 x TQ ... 000 0000 = Length is 1 x TQ Note 1: This register can only be modified in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 27 MCP2517FD REGISTER 3-8: R/W-0 CiDBTCFG – DATA BIT TIME CONFIGURATION REGISTER R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 BRP bit 31 bit 24 U-0 U-0 U-0 — — — R/W-0 R/W-1 R/W-1 R/W-1 R/W-0 TSEG1 bit 23 bit 16 U-0 U-0 U-0 U-0 — — — — R/W-0 R/W-0 R/W-1 R/W-1 TSEG2 bit 15 bit 8 U-0 U-0 U-0 U-0 — — — — R/W-0 R/W-0 R/W-1 R/W-1 SJW bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-24 BRP: Baud Rate Prescaler bits 1111 1111 = TQ = 256/Fsys ... 0000 0000 = TQ = 1/Fsys bit 23-21 Unimplemented: Read as ‘0’ bit 20-16 TSEG1: Time Segment 1 bits (Propagation Segment + Phase Segment 1) 1 1111 = Length is 32 x TQ ... 0 0000 = Length is 1 x TQ bit 15-12 Unimplemented: Read as ‘0’ bit 11-8 TSEG2: Time Segment 2 bits (Phase Segment 2) 1111 = Length is 16 x TQ ... 0000 = Length is 1 x TQ bit 7-4 Unimplemented: Read as ‘0’ bit 3-0 SJW: Synchronization Jump Width bits 1111 = Length is 16 x TQ ... 0000 = Length is 1 x TQ Note 1: This register can only be modified in Configuration mode. DS20005688B-page 28  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-9: CiTDC – TRANSMITTER DELAY COMPENSATION REGISTER U-0 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 — — — — — — EDGFLTEN SID11EN bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — R/W-1 R/W-0 TDCMOD bit 23 bit 16 U-0 R/W-0 R/W-0 R/W-1 — R/W-0 R/W-0 R/W-0 R/W-0 TDCO bit 15 bit 8 U-0 U-0 — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TDCV bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-26 Unimplemented: Read as ‘0’ bit 25 EDGFLTEN: Enable Edge Filtering during Bus Integration state bit 1 = Edge Filtering enabled, according to ISO 11898-1:2015 0 = Edge Filtering disabled bit 24 SID11EN: Enable 12-Bit SID in CAN FD Base Format Messages bit 1 = RRS is used as SID11 in CAN FD base format messages: SID = {SID, SID11} 0 = Don’t use RRS; SID according to ISO 11898-1:2015 bit 23-18 Unimplemented: Read as ‘0’ bit 17-16 TDCMOD: Transmitter Delay Compensation Mode bits; Secondary Sample Point (SSP) 10-11 = Auto; measure delay and add TDCO. 01 = Manual; Don’t measure, use TDCV + TDCO from register 00 = TDC Disabled bit 15 Unimplemented: Read as ‘0’ bit 14-8 TDCO: Transmitter Delay Compensation Offset bits; Secondary Sample Point (SSP) Two’s complement; offset can be positive, zero, or negative. 011 1111 = 63 x TSYSCLK ... 000 0000 = 0 x TSYSCLK ... 111 1111 = –64 x TSYSCLK bit 7-6 Unimplemented: Read as ‘0’ bit 5-0 TDCV: Transmitter Delay Compensation Value bits; Secondary Sample Point (SSP) 11 1111 = 63 x TSYSCLK ... 00 0000 = 0 x TSYSCLK Note 1: This register can only be modified in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 29 MCP2517FD REGISTER 3-10: R/W-0 CiTBC – TIME BASE COUNTER REGISTER R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TBC bit 31 bit 24 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TBC bit 23 bit 16 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TBC bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TBC bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: 2: x = Bit is unknown TBC: Time Base Counter bits This is a free running timer that increments every TBCPRE clocks when TBCEN is set The TBC will be stopped and reset when TBCEN = 0. The TBC prescaler count will be reset on any write to CiTBC (CiTSCON.TBCPRE will be unaffected). DS20005688B-page 30  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-11: CiTSCON – TIME STAMP CONTROL REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 — — — — — TSRES TSEOF TBCEN bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — R/W-0 R/W-0 TBCPRE bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TBCPRE bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-19 Unimplemented: Read as ‘0’ bit 18 TSRES: Time Stamp res bit (FD Frames only) 1 = at sample point of the bit following the FDF bit. 0 = at sample point of SOF bit 17 TSEOF: Time Stamp EOF bit 1 = Time Stamp when frame is taken valid: - RX no error until last but one bit of EOF - TX no error until the end of EOF 0 = Time Stamp at “beginning” of Frame: - Classical Frame: at sample point of SOF - FD Frame: see TSRES bit. bit 16 TBCEN: Time Base Counter Enable bit 1 = Enable TBC 0 = Stop and reset TBC bit 15-10 Unimplemented: Read as ‘0’ bit 9-0 TBCPRE: Time Base Counter Prescaler bits 1023 = TBC increments every 1024 clocks ... 0 = TBC increments every 1 clock  2017-2018 Microchip Technology Inc. x = Bit is unknown DS20005688B-page 31 MCP2517FD REGISTER 3-12: U-0 CiVEC – INTERRUPT CODE REGISTER R-1 R-0 R-0 R-0 R-0 R-0 R-0 RXCODE( 1) — bit 31 bit 24 U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0 TXCODE( 1) — bit 23 bit 16 U-0 U-0 U-0 — — — R-0 R-0 R-0 R-0 R-0 FILHIT( 1) bit 15 bit 8 U-0 R-1 R-0 R-0 R-0 R-0 R-0 R-0 ICODE( 1) — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31 Unimplemented: Read as ‘0’ bit 30-24 RXCODE: Receive Interrupt Flag Code bits( 1) 1000001-1111111 = Reserved 1000000 = No interrupt 0100000-0111111 = Reserved x = Bit is unknown 0011111 = FIFO 31 Interrupt (RFIF set) ... 0000010 = FIFO 2 Interrupt (RFIF set) 0000001 = FIFO 1 Interrupt (RFIF set) 0000000 = Reserved. FIFO 0 can’t receive. bit 23 Unimplemented: Read as ‘0’ bit 22-16 TXCODE: Transmit Interrupt Flag Code bits( 1) 1000001-1111111 = Reserved 1000000 = No interrupt 0100000-0111111 = Reserved 0011111 = FIFO 31 Interrupt (TFIF set) ... 0000001 = FIFO 1 Interrupt (TFIF set) 0000000 = TXQ Interrupt (TFIF set) bit 15-13 Unimplemented: Read as ‘0’ bit 12-8 FILHIT: Filter Hit Number bits( 1) 11111 = Filter 31 11110 = Filter 30 ... 00001 = Filter 1 00000 = Filter 0 bit 7 Unimplemented: Read as ‘0’ Note 1: If multiple interrupts are pending, the interrupt with the highest number will be indicated. DS20005688B-page 32  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-12: bit 6-0 Note 1: CiVEC – INTERRUPT CODE REGISTER (CONTINUED) ICODE[6:0]: Interrupt Flag Code bits( 1) 1001011-1111111 = Reserved 1001010 = Transmit Attempt Interrupt (any bit in CiTXATIF set) 1001001 = Transmit Event FIFO Interrupt (any bit in CiTEFIF set) 1001000 = Invalid Message Occurred (IVMIF/IE) 1000111 = Operation Mode Change Occurred (MODIF/IE) 1000110 = TBC Overflow (TBCIF/IE) 1000101 = RX/TX MAB Overflow/Underflow (RX: message received before previous message was saved to memory; TX: can't feed TX MAB fast enough to transmit consistent data.) (SERRIF/IE) 1000100 = Address Error Interrupt (illegal FIFO address presented to system) (SERRIF/IE) 1000011 = Receive FIFO Overflow Interrupt (any bit in CiRXOVIF set) 1000010 = Wake-up interrupt (WAKIF/WAKIE) 1000001 = Error Interrupt (CERRIF/IE) 1000000 = No interrupt 0100000-0111111 = Reserved 0011111 = FIFO 31 Interrupt (TFIF or RFIF set) ... 0000001 = FIFO 1 Interrupt (TFIF or RFIF set) 0000000 = TXQ Interrupt (TFIF set) If multiple interrupts are pending, the interrupt with the highest number will be indicated.  2017-2018 Microchip Technology Inc. DS20005688B-page 33 MCP2517FD REGISTER 3-13: CiINT – INTERRUPT REGISTER R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 IVMIE WAKIE CERRIE SERRIE RXOVIE TXATIE SPICRCIE ECCIE bit 31 bit 24 U-0 U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — — — TEFIE MODIE TBCIE RXIE TXIE bit 23 bit 16 HS/C-0 HS/C-0 HS/C-0 HS/C-0 R-0 R-0 R-0 R-0 IVMIF( 1) WAKIF( 1) CERRIF( 1) SERRIF( 1) RXOVIF TXATIF SPICRCIF ECCIF bit 15 bit 8 U-0 U-0 U-0 R-0 HS/C-0 HS/C-0 R-0 R-0 — — — TEFIF MODIF( 1) TBCIF( 1) RXIF TXIF bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31 IVMIE: Invalid Message Interrupt Enable bit bit 30 WAKIE: Bus Wake Up Interrupt Enable bit bit 29 CERRIE: CAN Bus Error Interrupt Enable bit bit 28 SERRIE: System Error Interrupt Enable bit bit 27 RXOVIE: Receive FIFO Overflow Interrupt Enable bit bit 26 TXATIE: Transmit Attempt Interrupt Enable bit bit 25 SPICRCIE: SPI CRC Error Interrupt Enable bit bit 24 ECCIE: ECC Error Interrupt Enable bit bit 23-21 Unimplemented: Read as ‘0’ bit 20 TEFIE: Transmit Event FIFO Interrupt Enable bit bit 19 MODIE: Mode Change Interrupt Enable bit bit 18 TBCIE: Time Base Counter Interrupt Enable bit bit 17 RXIE: Receive FIFO Interrupt Enable bit bit 16 TXIE: Transmit FIFO Interrupt Enable bit bit 15 IVMIF: Invalid Message Interrupt Flag bit( 1) bit 14 WAKIF: Bus Wake Up Interrupt Flag bit( 1) bit 13 CERRIF: CAN Bus Error Interrupt Flag bit( 1) bit 12 SERRIF: System Error Interrupt Flag bit( 1) 1 = A system error occurred 0 = No system error occurred bit 11 RXOVIF: Receive Object Overflow Interrupt Flag bit 1 = Receive FIFO overflow occurred 0 = No receive FIFO overflow has occurred bit 10 TXATIF: Transmit Attempt Interrupt Flag bit bit 9 Note 1: x = Bit is unknown SPICRCIF: SPI CRC Error Interrupt Flag bit Flags are set by hardware and cleared by application. DS20005688B-page 34  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-13: CiINT – INTERRUPT REGISTER (CONTINUED) bit 8 ECCIF: ECC Error Interrupt Flag bit bit 7-5 Unimplemented: Read as ‘0’ bit 4 TEFIF: Transmit Event FIFO Interrupt Flag bit 1 = TEF interrupt pending 0 = No TEF interrupts pending bit 3 MODIF: Operation Mode Change Interrupt Flag bit( 1) 1 = Operation mode change occurred (OPMOD has changed) 0 = No mode change occurred bit 2 TBCIF: Time Base Counter Overflow Interrupt Flag bit( 1) 1 = TBC has overflowed 0 = TBC didn’t overflow bit 1 RXIF: Receive FIFO Interrupt Flag bit 1 = Receive FIFO interrupt pending 0 = No receive FIFO interrupts pending bit 0 TXIF: Transmit FIFO Interrupt Flag bit 1 = Transmit FIFO interrupt pending 0 = No transmit FIFO interrupts pending Note 1: Flags are set by hardware and cleared by application.  2017-2018 Microchip Technology Inc. DS20005688B-page 35 MCP2517FD REGISTER 3-14: R-0 CiRXIF – RECEIVE INTERRUPT STATUS REGISTER R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFIF bit 31 bit 24 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFIF bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFIF bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFIF U-0 — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-1 bit 0 Note 1: x = Bit is unknown RFIF: Receive FIFO Interrupt Pending bits( 1) 1 = One or more enabled receive FIFO interrupts are pending 0 = No enabled receive FIFO interrupts are pending Unimplemented: Read as ‘0’ RFIF = ‘or’ of enabled RXFIFO flags; flags will be cleared when the condition of the FIFO terminates. DS20005688B-page 36  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-15: R-0 CiRXOVIF – RECEIVE OVERFLOW INTERRUPT STATUS REGISTER R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFOVIF bit 31 bit 24 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFOVIF bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFOVIF bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 RFOVIF U-0 — bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-1 bit 0 Note 1: x = Bit is unknown RFOVIF: Receive FIFO Overflow Interrupt Pending bits 1 = Interrupt is pending 0 = Interrupt not pending Unimplemented: Read as ‘0’ Flags need to be cleared in FIFO register  2017-2018 Microchip Technology Inc. DS20005688B-page 37 MCP2517FD REGISTER 3-16: R-0 CiTXIF – TRANSMIT INTERRUPT STATUS REGISTER R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFIF bit 31 bit 24 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFIF( 1) bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFIF( 1) bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFIF( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: 2: x = Bit is unknown TFIF: Transmit FIFO/TXQ ( 2) Interrupt Pending bits( 1) 1 = One or more enabled transmit FIFO/TXQ interrupts are pending 0 = No enabled transmit FIFO/TXQ interrupt are pending TFIF = ‘or’ of the enabled TXFIFO flags; flags will be cleared when the condition of the FIFO terminates. TFIF is for the Transmit Queue. DS20005688B-page 38  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-17: R-0 CiTXATIF – TRANSMIT ATTEMPT INTERRUPT STATUS REGISTER R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFATIF( 1) bit 31 bit 24 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFATIF( 1) bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFATIF( 1) bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TFATIF( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: 2: x = Bit is unknown TFATIF: Transmit FIFO/TXQ ( 2) Attempt Interrupt Pending bits( 1) 1 = Interrupt is pending 0 = Interrupt not pending Flags need to be cleared in FIFO register. TFATIF is for the Transmit Queue.  2017-2018 Microchip Technology Inc. DS20005688B-page 39 MCP2517FD REGISTER 3-18: S/HC-0 CiTXREQ – TRANSMIT REQUEST REGISTER S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 TXREQ bit 31 bit 24 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 TXREQ bit 23 bit 16 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 TXREQ bit 15 bit 8 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 S/HC-0 TXREQ bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-1 TXREQ: Message Send Request bits TXEN= 1 (Object configured as a Transmit Object) Setting this bit to ‘1’ requests sending a message. The bit will automatically clear when the message(s) queued in the object is (are) successfully sent. This bit can NOT be used for aborting a transmission. TXEN= 0 (Object configured as a Receive Object) This bit has no effect bit 0 TXREQ: Transmit Queue Message Send Request bit Setting this bit to ‘1’ requests sending a message. The bit will automatically clear when the message(s) queued in the object is (are) successfully sent. This bit can NOT be used for aborting a transmission. DS20005688B-page 40  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-19: CiTREC – TRANSMIT/RECEIVE ERROR COUNT REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 R-1 R-0 R-0 R-0 R-0 R-0 — — TXBO TXBP RXBP TXWARN RXWARN EWARN bit 23 bit 16 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 TEC bit 15 bit 8 R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0 REC bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-22 Unimplemented: Read as ‘0’ bit 21 TXBO: Transmitter in Bus Off State bit (TEC > 255) In Configuration mode, TXBO is set, since the module is not on the bus. bit 20 TXBP: Transmitter in Error Passive State bit (TEC > 127) bit 19 RXBP: Receiver in Error Passive State bit (REC > 127) bit 18 TXWARN: Transmitter in Error Warning State bit (128 > TEC > 95) bit 17 RXWARN: Receiver in Error Warning State bit (128 > REC > 95) bit 16 EWARN: Transmitter or Receiver is in Error Warning State bit bit 15-8 TEC: Transmit Error Counter bits bit 7-0 REC: Receive Error Counter bits  2017-2018 Microchip Technology Inc. x = Bit is unknown DS20005688B-page 41 MCP2517FD REGISTER 3-20: R/W-0 CiBDIAG0 – BUS DIAGNOSTIC REGISTER 0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 DTERRCNT bit 31 bit 24 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 DRERRCNT bit 23 bit 16 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 NTERRCNT bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 NRERRCNT bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-24 DTERRCNT: Data Bit Rate Transmit Error Counter bits bit 23-16 DRERRCNT: Data Bit Rate Receive Error Counter bits bit 15-8 NTERRCNT: Nominal Bit Rate Transmit Error Counter bits bit 7-0 NRERRCNT: Nominal Bit Rate Receive Error Counter bits DS20005688B-page 42 x = Bit is unknown  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-21: CiBDIAG1 – BUS DIAGNOSTICS REGISTER 1 R/W-0 R/W-0 R/W-0 DLCMM ESI DCRCERR R/W-0 R/W-0 DSTUFERR DFORMERR U-0 R/W-0 R/W-0 — DBIT1ERR DBIT0ERR bit 31 bit 24 R/W-0 U-0 R/W-0 TXBOERR — NCRCERR R/W-0 R/W-0 NSTUFERR NFORMERR R/W-0 R/W-0 R/W-0 NACKERR NBIT1ERR NBIT0ERR bit 23 bit 16 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 EFMSGCNT bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 EFMSGCNT bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31 DLCMM: DLC Mismatch bit During a transmission or reception, the specified DLC is larger than the PLSIZE of the FIFO element. bit 30 ESI: ESI flag of a received CAN FD message was set. bit 29 DCRCERR: Same as for nominal bit rate (see below). bit 28 DSTUFERR: Same as for nominal bit rate (see below). bit 27 DFORMERR: Same as for nominal bit rate (see below). bit 26 Unimplemented: Read as ‘0’ bit 25 DBIT1ERR: Same as for nominal bit rate (see below). bit 24 DBIT0ERR: Same as for nominal bit rate (see below). bit 23 TXBOERR: Device went to bus-off (and auto-recovered). bit 22 Unimplemented: Read as ‘0’ bit 21 NCRCERR: The CRC check sum of a received message was incorrect. The CRC of an incoming message does not match with the CRC calculated from the received data. bit 20 NSTUFERR: More than 5 equal bits in a sequence have occurred in a part of a received message where this is not allowed. bit 19 NFORMERR: A fixed format part of a received frame has the wrong format. bit 18 NACKERR: Transmitted message was not acknowledged. bit 17 NBIT1ERR: During the transmission of a message (with the exception of the arbitration field), the device wanted to send a recessive level (bit of logical value ‘1’), but the monitored bus value was dominant. bit 16 NBIT0ERR: During the transmission of a message (or acknowledge bit, or active error flag, or overload flag), the device wanted to send a dominant level (data or identifier bit logical value ‘0’), but the monitored bus value was recessive. bit 15-0 EFMSGCNT: Error Free Message Counter bits  2017-2018 Microchip Technology Inc. DS20005688B-page 43 MCP2517FD REGISTER 3-22: CiTEFCON – TRANSMIT EVENT FIFO CONTROL REGISTER U-0 U-0 U-0 — — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 FSIZE( 1) bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 S/HC-1 U-0 S/HC-0 — — — — — FRESET — UINC bit 15 bit 8 U-0 U-0 R/W-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 — — TEFTSEN( 1) — TEFOVIE TEFFIE TEFHIE TEFNEIE bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-29 Unimplemented: Read as ‘0’ bit 28-24 FSIZE: FIFO Size bits( 1) 0_0000 = FIFO is 1 Message deep 0_0001 = FIFO is 2 Messages deep 0_0010 = FIFO is 3 Messages deep ... 1_1111 = FIFO is 32 Messages deep x = Bit is unknown bit 23-11 Unimplemented: Read as ‘0’ bit 10 FRESET: FIFO Reset bit 1 = FIFO will be reset when bit is set, cleared by hardware when FIFO was reset. The user should wait for this bit to clear before taking any action. 0 = No effect bit 9 Unimplemented: Read as ‘0’ bit 8 UINC: Increment Tail bit When this bit is set, the FIFO tail will increment by a single message. bit 7-6 Unimplemented: Read as ‘0’ bit 5 TEFTSEN: Transmit Event FIFO Time Stamp Enable bit( 1) 1 = Time Stamp objects in TEF 0 = Don’t Time Stamp objects in TEF bit 4 Unimplemented: Read as ‘0’ bit 3 TEFOVIE: Transmit Event FIFO Overflow Interrupt Enable bit 1 = Interrupt enabled for overflow event 0 = Interrupt disabled for overflow event bit 2 TEFFIE: Transmit Event FIFO Full Interrupt Enable bit 1 = Interrupt enabled for FIFO full 0 = Interrupt disabled for FIFO full Note 1: These bits can only be modified in Configuration mode. DS20005688B-page 44  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-22: CiTEFCON – TRANSMIT EVENT FIFO CONTROL REGISTER (CONTINUED) bit 1 TEFHIE: Transmit Event FIFO Half Full Interrupt Enable bit 1 = Interrupt enabled for FIFO half full 0 = Interrupt disabled for FIFO half full bit 0 TEFNEIE: Transmit Event FIFO Not Empty Interrupt Enable bit 1 = Interrupt enabled for FIFO not empty 0 = Interrupt disabled for FIFO not empty Note 1: These bits can only be modified in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 45 MCP2517FD REGISTER 3-23: CiTEFSTA – TRANSMIT EVENT FIFO STATUS REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 15 bit 8 U-0 U-0 U-0 U-0 HS/C-0 R-0 R-0 R-0 — — — — TEFOVIF TEFFIF( 1) TEFHIF( 1) TEFNEIF( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-4 Unimplemented: Read as ‘0’ bit 3 TEFOVIF: Transmit Event FIFO Overflow Interrupt Flag bit 1 = Overflow event has occurred 0 = No overflow event occurred bit 2 TEFFIF: Transmit Event FIFO Full Interrupt Flag bit( 1) 1 = FIFO is full 0 = FIFO is not full bit 1 TEFHIF: Transmit Event FIFO Half Full Interrupt Flag bit( 1) 1 = FIFO is ≥ half full 0 = FIFO is < half full bit 0 TEFNEIF: Transmit Event FIFO Not Empty Interrupt Flag bit( 1) 1 = FIFO is not empty, contains at least one message 0 = FIFO is empty Note 1: x = Bit is unknown This bit is read only and reflects the status of the FIFO. DS20005688B-page 46  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-24: R-x CiTEFUA – TRANSMIT EVENT FIFO USER ADDRESS REGISTER R-x R-x R-x R-x R-x R-x R-x TEFUA bit 31 bit 24 R-x R-x R-x R-x R-x R-x R-x R-x TEFUA bit 23 bit 16 R-x R-x R-x R-x R-x R-x R-x R-x TEFUA bit 15 bit 8 R-x R-x R-x R-x R-x R-x R-x R-x TEFUA bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: x = Bit is unknown TEFUA: Transmit Event FIFO User Address bits A read of this register will return the address where the next object is to be read (FIFO tail). This register is not guaranteed to read correctly in Configuration mode and should only be accessed when the module is not in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 47 MCP2517FD REGISTER 3-25: R/W-0 CiTXQCON – TRANSMIT QUEUE CONTROL REGISTER R/W-0 R/W-0 R/W-0 R/W-0 PLSIZE( 1) R/W-0 R/W-0 R/W-0 FSIZE( 1) bit 31 bit 24 U-0 R/W-1 — R/W-1 R/W-0 R/W-0 TXAT R/W-0 R/W-0 R/W-0 TXPRI bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 S/HC-1 R/W/HC-0 S/HC-0 — — — — — FRESET( 3) TXREQ( 2) UINC bit 15 bit 8 R-1 U-0 U-0 R/W-0 U-0 R/W-0 U-0 R/W-0 TXEN — — TXATIE — TXQEIE — TXQNIE bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-29 PLSIZE: Payload Size bits( 1) 000 = 8 data bytes 001 = 12 data bytes 010 = 16 data bytes 011 = 20 data bytes 100 = 24 data bytes 101 = 32 data bytes 110 = 48 data bytes 111 = 64 data bytes bit 28-24 FSIZE: FIFO Size bits( 1) 0_0000 = FIFO is 1 Message deep 0_0001 = FIFO is 2 Messages deep 0_0010 = FIFO is 3 Messages deep ... 1_1111 = FIFO is 32 Messages deep bit 23 Unimplemented: Read as ‘0’ bit 22-21 TXAT: Retransmission Attempts bits This feature is enabled when CiCON.RTXAT is set. 00 = Disable retransmission attempts 01 = Three retransmission attempts 10 = Unlimited number of retransmission attempts 11 = Unlimited number of retransmission attempts bit 20-16 TXPRI: Message Transmit Priority bits 00000 = Lowest Message Priority ... 11111 = Highest Message Priority Note 1: 2: 3: x = Bit is unknown These bits can only be modified in Configuration mode. This bit is updated when a message completes (or aborts) or when the FIFO is reset. FRESET is set while in Configuration mode and is automatically cleared in Normal mode. DS20005688B-page 48  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-25: CiTXQCON – TRANSMIT QUEUE CONTROL REGISTER (CONTINUED) bit 15-11 Unimplemented: Read as ‘0’ bit 10 FRESET: FIFO Reset bit( 3) 1 = FIFO will be reset when bit is set; cleared by hardware when FIFO was reset. User should wait until this bit is clear before taking any action. 0 = No effect bit 9 TXREQ: Message Send Request bit( 2) 1 = Requests sending a message; the bit will automatically clear when all the messages queued in the TXQ are successfully sent. 0 = Clearing the bit to ‘0’ while set (‘1’) will request a message abort. bit 8 UINC: Increment Head bit When this bit is set, the FIFO head will increment by a single message. bit 7 TXEN: TX Enable 1 = Transmit Message Queue. This bit always reads as ‘1’. bit 6-5 Unimplemented: Read as ‘0’ bit 4 TXATIE: Transmit Attempts Exhausted Interrupt Enable bit 1 = Enable interrupt 0 = Disable interrupt bit 3 Unimplemented: Read as ‘0’ bit 2 TXQEIE: Transmit Queue Empty Interrupt Enable bit 1 = Interrupt enabled for TXQ empty 0 = Interrupt disabled for TXQ empty bit 1 Unimplemented: Read as ‘0’ bit 0 TXQNIE: Transmit Queue Not Full Interrupt Enable bit 1 = Interrupt enabled for TXQ not full 0 = Interrupt disabled for TXQ not full Note 1: 2: 3: These bits can only be modified in Configuration mode. This bit is updated when a message completes (or aborts) or when the FIFO is reset. FRESET is set while in Configuration mode and is automatically cleared in Normal mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 49 MCP2517FD REGISTER 3-26: CiTXQSTA – TRANSMIT QUEUE STATUS REGISTER U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 U-0 U-0 — — — R-0 R-0 R-0 R-0 R-0 TXQCI( 1) bit 15 bit 8 HS/C-0 HS/C-0 HS/C-0 HS/C-0 U-0 R-1 U-0 R-1 TXABT( 2)( 3) TXLARB TXERR( 2)( 3) TXATIF — TXQEIF — TXQNIF ( 2)( 3) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 3-13 Unimplemented: Read as ‘0’ bit 12-8 TXQCI: Transmit Queue Message Index bits( 1) A read of this register will return an index to the message that the FIFO will next attempt to transmit. bit 7 TXABT: Message Aborted Status bit( 2)( 3) 1 = Message was aborted 0 = Message completed successfully bit 6 TXLARB: Message Lost Arbitration Status bit( 2)( 3) 1 = Message lost arbitration while being sent 0 = Message did not loose arbitration while being sent bit 5 TXERR: Error Detected During Transmission bit( 2)( 3) 1 = A bus error occurred while the message was being sent 0 = A bus error did not occur while the message was being sent bit 4 TXATIF: Transmit Attempts Exhausted Interrupt Pending bit 1 = Interrupt pending 0 = Interrupt Not pending bit 3 Unimplemented: Read as ‘0’ bit 2 TXQEIF: Transmit Queue Empty Interrupt Flag bit 1 = TXQ is empty 0 = TXQ is not empty, at least 1 message queued to be transmitted bit 1 Unimplemented: Read as ‘0’ bit 0 TXQNIF: Transmit Queue Not Full Interrupt Flag bit 1 = TXQ is not full 0 = TXQ is full Note 1: 2: 3: TXQCI gives a zero-indexed value to the message in the TXQ. If the TXQ is 4 messages deep (FSIZE=5’h03) TXQCI will take on a value of 0 to 3 depending on the state of the TXQ. This bit is cleared when TXREQ is set or by writing a 0 using the SPI. This bit is updated when a message completes (or aborts) or when the TXQ is reset. DS20005688B-page 50  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-27: R-x CiTXQUA – TRANSMIT QUEUE USER ADDRESS REGISTER R-x R-x R-x R-x R-x R-x R-x TXQUA bit 31 bit 24 R-x R-x R-x R-x R-x R-x R-x R-x TXQUA bit 23 bit 16 R-x R-x R-x R-x R-x R-x R-x R-x TXQUA bit 15 bit 8 R-x R-x R-x R-x R-x R-x R-x R-x TXQUA bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: x = Bit is unknown TXQUA: TXQ User Address bits A read of this register will return the address where the next message is to be written (TXQ head). This register is not guaranteed to read correctly in Configuration mode and should only be accessed when the module is not in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 51 MCP2517FD REGISTER 3-28: R/W-0 CiFIFOCONm – FIFO CONTROL REGISTER m, (m = 1 TO 31) R/W-0 R/W-0 R/W-0 R/W-0 PLSIZE( 1) R/W-0 R/W-0 R/W-0 FSIZE( 1) bit 31 bit 24 U-0 R/W-1 — R/W-1 R/W-0 R/W-0 TXAT R/W-0 R/W-0 R/W-0 TXPRI bit 23 bit 16 U-0 U-0 U-0 U-0 U-0 S/HC-1 R/W/HC-0 S/HC-0 — — — — — FRESET( 3) TXREQ( 2) UINC bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 TXEN( 1) RTREN RXTSEN( 1) TXATIE RXOVIE TFERFFIE TFHRFHIE TFNRFNIE bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-29 PLSIZE: Payload Size bits( 1) 000 = 8 data bytes 001 = 12 data bytes 010 = 16 data bytes 011 = 20 data bytes 100 = 24 data bytes 101 = 32 data bytes 110 = 48 data bytes 111 = 64 data bytes bit 28-24 FSIZE: FIFO Size bits( 1) 0_0000 = FIFO is 1 Message deep 0_0001 = FIFO is 2 Messages deep 0_0010 = FIFO is 3 Messages deep ... 1_1111 = FIFO is 32 Messages deep bit 23 Unimplemented: Read as ‘0’ bit 22-21 TXAT: Retransmission Attempts bits This feature is enabled when CiCON.RTXAT is set. 00 = Disable retransmission attempts 01 = Three retransmission attempts 10 = Unlimited number of retransmission attempts 11 = Unlimited number of retransmission attempts bit 20-16 TXPRI: Message Transmit Priority bits 00000 = Lowest Message Priority ... 11111 = Highest Message Priority Note 1: 2: 3: x = Bit is unknown These bits can only be modified in Configuration mode. This bit is updated when a message completes (or aborts) or when the FIFO is reset. FRESET is set while in Configuration mode and is automatically cleared in Normal mode. DS20005688B-page 52  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-28: CiFIFOCONm – FIFO CONTROL REGISTER m, (m = 1 TO 31) (CONTINUED) bit 15-11 Unimplemented: Read as ‘0’ bit 10 FRESET: FIFO Reset bit( 3) 1 = FIFO will be reset when bit is set; cleared by hardware when FIFO was reset. User should wait until this bit is clear before taking any action. 0 = No effect bit 9 TXREQ: Message Send Request bit( 2) TXEN = 1 (FIFO configured as a Transmit FIFO) 1 = Requests sending a message; the bit will automatically clear when all the messages queued in the FIFO are successfully sent. 0 = Clearing the bit to ‘0’ while set (‘1’) will request a message abort. TXEN = 0 (FIFO configured as a Receive FIFO) This bit has no effect. bit 8 UINC: Increment Head/Tail bit TXEN = 1 (FIFO configured as a Transmit FIFO) When this bit is set, the FIFO head will increment by a single message. TXEN = 0 (FIFO configured as a Receive FIFO) When this bit is set, the FIFO tail will increment by a single message. bit 7 TXEN: TX/RX FIFO Selection bit( 1) 1 = Transmit FIFO 0 = Receive FIFO bit 6 RTREN: Auto RTR Enable bit 1 = When a remote transmit is received, TXREQ will be set. 0 = When a remote transmit is received, TXREQ will be unaffected. bit 5 RXTSEN: Received Message Time Stamp Enable bit( 1) 1 = Capture time stamp in received message object in RAM. 0 = Don’t capture time stamp. bit 4 TXATIE: Transmit Attempts Exhausted Interrupt Enable bit 1 = Enable interrupt 0 = Disable interrupt bit 3 RXOVIE: Overflow Interrupt Enable bit 1 = Interrupt enabled for overflow event 0 = Interrupt disabled for overflow event bit 2 TFERFFIE: Transmit/Receive FIFO Empty/Full Interrupt Enable bit TXEN = 1 (FIFO configured as a Transmit FIFO) Transmit FIFO Empty Interrupt Enable 1 = Interrupt enabled for FIFO empty 0 = Interrupt disabled for FIFO empty TXEN = 0 (FIFO configured as a Receive FIFO) Receive FIFO Full Interrupt Enable 1 = Interrupt enabled for FIFO full 0 = Interrupt disabled for FIFO full bit 1 TFHRFHIE: Transmit/Receive FIFO Half Empty/Half Full Interrupt Enable bit TXEN = 1 (FIFO configured as a Transmit FIFO) Transmit FIFO Half Empty Interrupt Enable 1 = Interrupt enabled for FIFO half empty 0 = Interrupt disabled for FIFO half empty TXEN = 0 (FIFO configured as a Receive FIFO) Receive FIFO Half Full Interrupt Enable 1 = Interrupt enabled for FIFO half full 0 = Interrupt disabled for FIFO half full Note 1: 2: 3: These bits can only be modified in Configuration mode. This bit is updated when a message completes (or aborts) or when the FIFO is reset. FRESET is set while in Configuration mode and is automatically cleared in Normal mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 53 MCP2517FD REGISTER 3-28: bit 0 Note 1: 2: 3: CiFIFOCONm – FIFO CONTROL REGISTER m, (m = 1 TO 31) (CONTINUED) TFNRFNIE: Transmit/Receive FIFO Not Full/Not Empty Interrupt Enable bit TXEN = 1 (FIFO configured as a Transmit FIFO) Transmit FIFO Not Full Interrupt Enable 1 = Interrupt enabled for FIFO not full 0 = Interrupt disabled for FIFO not full TXEN = 0 (FIFO configured as a Receive FIFO) Receive FIFO Not Empty Interrupt Enable 1 = Interrupt enabled for FIFO not empty 0 = Interrupt disabled for FIFO not empty These bits can only be modified in Configuration mode. This bit is updated when a message completes (or aborts) or when the FIFO is reset. FRESET is set while in Configuration mode and is automatically cleared in Normal mode. DS20005688B-page 54  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-29: CiFIFOSTAm – FIFO STATUS REGISTER m, (m = 1 TO 31) U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 31 bit 24 U-0 U-0 U-0 U-0 U-0 U-0 U-0 U-0 — — — — — — — — bit 23 bit 16 U-0 U-0 U-0 — — — R-0 R-0 R-0 R-0 R-0 FIFOCI( 1) bit 15 bit 8 HS/C-0 HS/C-0 HS/C-0 HS/C-0 HS/C-0 R-0 R-0 R-0 TXABT( 2)( 3) TXLARB TXERR( 2)( 3) TXATIF RXOVIF TFERFFIF TFHRFHIF TFNRFNIF ( 2)( 3) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31-13 Unimplemented: Read as ‘0’ bit 12-8 FIFOCI: FIFO Message Index bits( 1) TXEN = 1 (FIFO is configured as a Transmit FIFO) A read of this bit field will return an index to the message that the FIFO will next attempt to transmit. TXEN = 0 (FIFO is configured as a Receive FIFO) A read of this bit field will return an index to the message that the FIFO will use to save the next message bit 7 TXABT: Message Aborted Status bit( 2)( 3) 1 = Message was aborted 0 = Message completed successfully bit 6 TXLARB: Message Lost Arbitration Status bit( 2)( 3) 1 = Message lost arbitration while being sent 0 = Message did not lose arbitration while being sent bit 5 TXERR: Error Detected During Transmission bit( 2)( 3) 1 = A bus error occurred while the message was being sent 0 = A bus error did not occur while the message was being sent bit 4 TXATIF: Transmit Attempts Exhausted Interrupt Pending bit TXEN = 1 (FIFO is configured as a Transmit FIFO) 1 = Interrupt pending 0 = Interrupt not pending TXEN = 0 (FIFO is configured as a Receive FIFO) Read as ‘0’ Note 1: 2: 3: FIFOCI gives a zero-indexed value to the message in the FIFO. If the FIFO is 4 messages deep (FSIZE=5’h03) FIFOCI will take on a value of 0 to 3 depending on the state of the FIFO. This bit is cleared when TXREQ is set or by writing a 0 using the SPI. This bit is updated when a message completes (or aborts) or when the FIFO is reset.  2017-2018 Microchip Technology Inc. DS20005688B-page 55 MCP2517FD REGISTER 3-29: CiFIFOSTAm – FIFO STATUS REGISTER m, (m = 1 TO 31) (CONTINUED) bit 3 RXOVIF: Receive FIFO Overflow Interrupt Flag bit TXEN = 1 (FIFO is configured as a Transmit FIFO) Unused, Read as ‘0’ TXEN = 0 (FIFO is configured as a Receive FIFO) 1 = Overflow event has occurred 0 = No overflow event has occurred bit 2 TFERFFIF: Transmit/Receive FIFO Empty/Full Interrupt Flag bit TXEN = 1 (FIFO is configured as a Transmit FIFO) Transmit FIFO Empty Interrupt Flag 1 = FIFO is empty 0 = FIFO is not empty; at least one message queued to be transmitted TXEN = 0 (FIFO is configured as a Receive FIFO) Receive FIFO Full Interrupt Flag 1 = FIFO is empty 0 = FIFO is not full bit 1 TFHRFHIF: Transmit/Receive FIFO Half Empty/Half Full Interrupt Flag bit TXEN = 1 (FIFO is configured as a Transmit FIFO) Transmit FIFO Half Empty Interrupt Flag 1 = FIFO is ≤ half full 0 = FIFO is > half full TXEN = 0 (FIFO is configured as a Receive FIFO) Receive FIFO Half Full Interrupt Flag 1 = FIFO is ≥ half full 0 = FIFO is < half full bit 0 TFNRFNIF: Transmit/Receive FIFO Not Full/Not Empty Interrupt Flag bit TXEN = 1 (FIFO is configured as a Transmit FIFO) Transmit FIFO Not Full Interrupt Flag 1 = FIFO is not full 0 = FIFO is full TXEN = 0 (FIFO is configured as a Receive FIFO) Receive FIFO Not Empty Interrupt Flag 1 = FIFO is not empty, contains at least one message 0 = FIFO is empty Note 1: 2: 3: FIFOCI gives a zero-indexed value to the message in the FIFO. If the FIFO is 4 messages deep (FSIZE=5’h03) FIFOCI will take on a value of 0 to 3 depending on the state of the FIFO. This bit is cleared when TXREQ is set or by writing a 0 using the SPI. This bit is updated when a message completes (or aborts) or when the FIFO is reset. DS20005688B-page 56  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-30: R-x CiFIFOUAm – FIFO USER ADDRESS REGISTER m, (m = 1 TO 31) R-x R-x R-x R-x R-x R-x R-x FIFOUA bit 31 bit 24 R-x R-x R-x R-x R-x R-x R-x R-x FIFOUA bit 23 bit 16 R-x R-x R-x R-x R-x R-x R-x R-x FIFOUA bit 15 bit 8 R-x R-x R-x R-x R-x R-x R-x R-x FIFOUA bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31-0 Note 1: x = Bit is unknown FIFOUA: FIFO User Address bits TXEN = 1 (FIFO is configured as a Transmit FIFO) A read of this register will return the address where the next message is to be written (FIFO head). TXEN = 0 (FIFO is configured as a Receive FIFO) A read of this register will return the address where the next message is to be read (FIFO tail). This bit is not guaranteed to read correctly in Configuration mode and should only be accessed when the module is not in Configuration mode.  2017-2018 Microchip Technology Inc. DS20005688B-page 57 MCP2517FD REGISTER 3-31: CiFLTCONm – FILTER CONTROL REGISTER m, (m = 0 TO 7) R/W-0 U-0 U-0 FLTEN3 — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 F3BP( 1) bit 31 bit 24 R/W-0 U-0 U-0 FLTEN2 — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 F2BP( 1) bit 23 bit 16 R/W-0 U-0 U-0 FLTEN1 — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 F1BP( 1) bit 15 bit 8 R/W-0 U-0 U-0 FLTEN0 — — R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 F0BP( 1) bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31 FLTEN3: Enable Filter 3 to Accept Messages bit 1 = Filter is enabled 0 = Filter is disabled bit 30-29 Unimplemented: Read as ‘0’ bit 28-24 F3BP: Pointer to FIFO when Filter 3 hits bits( 1) 1_1111 = Message matching filter is stored in FIFO 31 1_1110 = Message matching filter is stored in FIFO 30 ........ 0_0010 = Message matching filter is stored in FIFO 2 0_0001 = Message matching filter is stored in FIFO 1 0_0000 = Reserved FIFO 0 is the TX Queue and can’t receive messages bit 23 FLTEN2>: Enable Filter 2 to Accept Messages bit 1 = Filter is enabled 0 = Filter is disabled bit 22-21 Unimplemented: Read as ‘0’ bit 20-16 F2BP: Pointer to FIFO when Filter 2 hits bits( 1) 1_1111 = Message matching filter is stored in FIFO 31 1_1110 = Message matching filter is stored in FIFO 30 ........ 0_0010 = Message matching filter is stored in FIFO 2 0_0001 = Message matching filter is stored in FIFO 1 0_0000 = Reserved FIFO 0 is the TX Queue and can’t receive messages bit 15 FLTEN1: Enable Filter 1 to Accept Messages bit 1 = Filter is enabled 0 = Filter is disabled bit 14-13 Unimplemented: Read as ‘0’ Note 1: This bit can only be modified if the corresponding filter is disabled (FLTEN = 0). DS20005688B-page 58  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-31: CiFLTCONm – FILTER CONTROL REGISTER m, (m = 0 TO 7) (CONTINUED) bit 12-8 F1BP: Pointer to FIFO when Filter 1 hits bits( 1) 1_1111 = Message matching filter is stored in FIFO 31 1_1110 = Message matching filter is stored in FIFO 30 ........ 0_0010 = Message matching filter is stored in FIFO 2 0_0001= Message matching filter is stored in FIFO 1 0_0000 = Reserved FIFO 0 is the TX Queue and can’t receive messages bit 7 FLTEN0: Enable Filter 0 to Accept Messages bit 1 = Filter is enabled 0 = Filter is disabled bit 6-5 Unimplemented: Read as ‘0’ bit 4-0 F0BP: Pointer to FIFO when Filter 0 hits bits( 1) 1_1111 = Message matching filter is stored in FIFO 31 1_1110 = Message matching filter is stored in FIFO 30 ........ 0_0010 = Message matching filter is stored in FIFO 2 0_0001 = Message matching filter is stored in FIFO 1 0_0000 = Reserved FIFO 0 is the TX Queue and can’t receive messages Note 1: This bit can only be modified if the corresponding filter is disabled (FLTEN = 0).  2017-2018 Microchip Technology Inc. DS20005688B-page 59 MCP2517FD REGISTER 3-32: CiFLTOBJm – FILTER OBJECT REGISTER m,(m = 0 TO 31) U-0 R/W-0 R/W-0 — EXIDE SID11 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 EID bit 31 bit 24 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 EID bit 23 bit 16 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 EID R/W-0 R/W-0 SID bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 SID bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 31 Unimplemented: Read as ‘0’ bit 30 EXIDE: Extended Identifier Enable bit If MIDE = 1: 1 = Match only messages with extended identifier 0 = Match only messages with standard identifier x = Bit is unknown bit 29 SID11: Standard Identifier filter bit bit 28-11 EID: Extended Identifier filter bits In DeviceNet mode, these are the filter bits for the first 18 data bits bit 10-0 Note 1: SID: Standard Identifier filter bits This register can only be modified when the filter is disabled(CiFLTCON.FLTENm = 0). DS20005688B-page 60  2017-2018 Microchip Technology Inc. MCP2517FD REGISTER 3-33: CiMASKm – MASK REGISTER m, (m = 0 TO 31) U-0 R/W-0 R/W-0 — MIDE MSID11 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 MEID bit 31 bit 24 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 MEID bit 23 bit 16 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 MEID R/W-0 R/W-0 MSID bit 15 bit 8 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 MSID bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown bit 31 Unimplemented: Read as ‘0’ bit 30 MIDE: Identifier Receive mode bit 1 = Match only message types (standard or extended ID) that correspond to EXIDE bit in filter 0 = Match both standard and extended message frames if filters match bit 29 MSID11: Standard Identifier Mask bit bit 28-11 MEID: Extended Identifier Mask bits In DeviceNet mode, these are the mask bits for the first 18 data bits bit 10-0 MSID: Standard Identifier Mask bits  2017-2018 Microchip Technology Inc. DS20005688B-page 61 MCP2517FD NOTES: DS20005688B-page 62  2017-2018 Microchip Technology Inc. MCP2517FD 3.3 3.3.1.3 Message Memory RAM READ During a RAM read, the Decoder checks the output data from RAM for consistency and removes the parity bits. It corrects single bit errors and detects double bit errors. The MCP2517FD contains a 2 KB RAM that is used to store message objects. There are three different kinds of message objects: • Table 3-5: Transmit Message Objects used by the TXQ and by TX FIFOs. • Table 3-6: Receive Message Objects used by RX FIFOs. • Table 3-7: TEF objects. FIGURE 3-2: MESSAGE MEMORY ORGANIZATION TEF Figure 3-2 illustrates how message objects are mapped into RAM. The number of message objects for the TEF, the TXQ, and for each FIFO is configurable. Only the message objects for FIFO2 are shown in detail. The number of data bytes per message object (payload) is individually configurable for the TXQ and each FIFO. TX Queue FIFO1 FIFO2: Message Object 0 FIFO2: Message Object 1 FIFOs and message objects can only be configured in Configuration mode. FIFO2: Message Object n The TEF objects are allocated first. Space in RAM will only be reserved if CiCON.STEF = 1. FIFO3 Next the TXQ objects are allocated. Space in RAM will only be reserved if CiCON.TXQEN = 1. FIFO31 Next the message objects for FIFO1 through FIFO31 are allocated. This highly flexible configuration results in an efficient usage of the RAM. FIGURE 3-3: The addresses of the message objects depend on the selected configuration. The application doesn’t have to calculate the addresses. The User Address field provides the address of the next message object to read from or write to. 3.3.1 ECC LOGIC ECC.PARITY Write Data P D Data/Parity Encoder RAM ECC The RAM is protected with an Error Correction Code (ECC). The ECC logic supports Single Error Correction (SEC), and Double Error Detection (DED). DP DE ECCCON.ECCEN SEC/DED requires seven parity bits in addition to the 32 data bits. DR Figure 3-3 shows the block diagram of the ECC logic. 3.3.1.1 RAM 512x(32+7) ECC Enable and Disable QR The ECC logic can be enabled by setting ECCCON.ECCEN. When ECC is enabled, the data written to the RAM is encoded, and the data read from RAM is decoded. QR without Parity When the ECC logic is disabled, the data is written to RAM, the parity bits are taken from ECCCON.PARITY. This enables the testing of the ECC logic by the user. During a read the parity bits are stripped out and the data is read back unchanged. 3.3.1.2 Decoder D ECCSTAT.SECIF ECCSTAT.DEDIF DO ECCCON.ECCEN Q RAM Write Read Data During a RAM write, the Encoder calculates the parity bits and adds the parity bits to the input data.  2017-2018 Microchip Technology Inc. Draft DS20005688B-page 63 MCP2517FD TABLE 3-5: Word T0 TRANSMIT MESSAGE OBJECT (TXQ AND TX FIFO) Bit 31/23/15/7 Bit 30/22/14/6 Bit 29/21/13/5 -— -— SID11 31:24 Bit 28/20/12/4 EID SID 31:24 -— -— -— -— -— -— -— -— 23:16 -— -— -— -— -— -— -— -— ESI 15:8 7:0 Ti Bit 24/16/8/0 SID 7:0 T3 Bit 25/17/9/1 EID 15:8 T2 (1) Bit 26/18/10/2 EID 23:16 T1 Bit 27/19/11/3 31:24 SEQ FDF BRS RTR IDE DLC Transmit Data Byte 3 23:16 Transmit Data Byte 2 15:8 Transmit Data Byte 1 7:0 Transmit Data Byte 0 31:24 Transmit Data Byte 7 23:16 Transmit Data Byte 6 15:8 Transmit Data Byte 5 7:0 Transmit Data Byte 4 31:24 Transmit Data Byte n 23:16 Transmit Data Byte n-1 15:8 Transmit Data Byte n-2 7:0 Transmit Data Byte n-3 bit T0.31-30 bit T0.29 bit T0.28-11 bit T0.10-0 bit T1.31-16 bit T1.15-9 bit T1.8 Unimplemented: Read as ‘x’ SID11: In FD mode the standard ID can be extended to 12 bit using r1 EID: Extended Identifier SID: Standard Identifier Unimplemented: Read as ‘x’ SEQ: Sequence to keep track of transmitted messages in Transmit Event FIFO ESI: Error Status Indicator In CAN to CAN gateway mode (CiCON.ESIGM=1), the transmitted ESI flag is a “logical OR” of T1.ESI and error passive state of the CAN controller; In normal mode ESI indicates the error status 1 = Transmitting node is error passive 0 = Transmitting node is error active bit T1.7 FDF: FD Frame; distinguishes between CAN and CAN FD formats bit T1.6 BRS: Bit Rate Switch; selects if data bit rate is switched bit T1.5 RTR: Remote Transmission Request; not used in CAN FD bit T1.4 IDE: Identifier Extension Flag; distinguishes between base and extended format bit T1.3-0 DLC: Data Length Code Note 1: Data Bytes 0-n: payload size is configured individually in control register (CiFIFOCONm.PLSIZE). DS20005688B-page 64 Draft  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 3-6: RECEIVE MESSAGE OBJECT Word R0 31:24 Bit 31/23/15/7 Bit 30/22/14/6 Bit 29/21/13/5 -— -— SID11 Bit 28/20/12/4 EID SID 31:24 -— -— -— -— -— -— -— -— 23:16 -— -— -— FILHIT -— -— -— -— -— -— ESI RTR IDE 15:8 7:0 R4 Ri Bit 24/16/8/0 SID 7:0 R3 (1) Bit 25/17/9/1 EID 15:8 R2 (2) Bit 26/18/10/2 EID 23:16 R1 Bit 27/19/11/3 FDF BRS -— 31:24 RXMSGTS 23:16 RXMSGTS 15:8 RXMSGTS 7:0 RXMSGTS 31:24 Receive Data Byte 3 23:16 Receive Data Byte 2 15:8 Receive Data Byte 1 7:0 Receive Data Byte 0 31:24 Receive Data Byte 7 23:16 Receive Data Byte 6 15:8 Receive Data Byte 5 7:0 Receive Data Byte 4 31:24 Receive Data Byte n 23:16 Receive Data Byte n-1 15:8 Receive Data Byte n-2 7:0 Receive Data Byte n-3 bit R0.31-30 bit R0.29 bit R0.28-11 bit R0.10-0 bit R1.31-16 bit R1.15-11 bit R1.10-9 bit R1.8 bit R1.7 bit R1.6 bit R1.5 bit R1.4 bit R1.3-0 bit R2.31-0 DLC Unimplemented: Read as ‘x’ SID11: In FD mode the standard ID can be extended to 12 bit using r1 EID: Extended Identifier SID: Standard Identifier Unimplemented: Read as ‘x’ FILTHIT: Filter Hit, number of filter that matched Unimplemented: Read as ‘x’ ESI: Error Status Indicator 1 = Transmitting node is error passive 0 = Transmitting node is error active FDF: FD Frame; distinguishes between CAN and CAN FD formats BRS: Bit Rate Switch; indicates if data bit rate was switched RTR: Remote Transmission Request; not used in CAN FD IDE: Identifier Extension Flag; distinguishes between base and extended format DLC: Data Length Code RXMSGTS: Receive Message Time Stamp Note 1: RXMOBJ: Data Bytes 0-n: payload size is configured individually in the FIFO control register (CiFIFOCONm.PLSIZE). 2: R2 (RXMSGTS) only exits in objects where CiFIFOCONm.RXTSEN is set.  2017-2018 Microchip Technology Inc. Draft DS20005688B-page 65 MCP2517FD TABLE 3-7: Word TE0 TRANSMIT EVENT FIFO OBJECT Bit 31/23/15/7 Bit 30/22/14/6 Bit 29/21/13/5 -— -— SID11 31:24 Bit 28/20/12/4 Bit 25/17/9/1 Bit 24/16/8/0 EID 15:8 EID SID 7:0 SID 31:24 -— -— -— -— -— -— -— -— 23:16 -— -— -— -— -— -— -— -— ESI 15:8 7:0 TE2 (1) Bit 26/18/10/2 EID 23:16 TE1 Bit 27/19/11/3 SEQ FDF BRS RTR IDE 31:24 TXMSGTS 23:16 TXMSGTS 15:8 TXMSGTS 7:0 TXMSGTS DLC bit TE0.31-30 bit TE0.29 bit TE0.28-11 bit TE0.10-0 bit TE1.31-16 bit TE1.15-9 bit TE1.8 Unimplemented: Read as ‘x’ SID11: In FD mode the standard ID can be extended to 12 bit using r1 EID: Extended Identifier SID: Standard Identifier Unimplemented: Read as ‘x’ SEQ: Sequence to keep track of transmitted messages ESI: Error Status Indicator 1 = Transmitting node is error passive 0 = Transmitting node is error active bit TE1.7 FDF: FD Frame; distinguishes between CAN and CAN FD formats bit TE1.6 BRS: Bit Rate Switch; selects if data bit rate is switched bit TE1.5 RTR: Remote Transmission Request; not used in CAN FD bit TE1.4 IDE: Identifier Extension Flag; distinguishes between base and extended format bit TE1.3-0 DLC: Data Length Code bit TE2.31-0 TXMSGTS: Transmit Message Time Stamp (1) Note 1: TE2 (TXMSGTS) only exits in objects where CiTEFCON.TEFTSEN is set. DS20005688B-page 66 Draft  2017-2018 Microchip Technology Inc. MCP2517FD 4.0 Refer to Figure 7-1 for detailed input and output timing for both mode 0,0 and mode 1,1. SPI INTERFACE The MCP2517FD is designed to interface directly with an Serial Peripheral Interface (SPI) port available on most microcontrollers. The SPI in the microcontroller must be configured in mode 0,0 or 1,1 in 8-bit operating mode. Table 4-1 lists the SPI instructions and their format. Note 1: The frequency of SCK has to be less than or equal to half the frequency of SYSCLK. This ensures that the synchronization between SCK and SYSCLK works correctly. SFR and Message Memory (RAM) are accessed using SPI instructions. Figure 4-1 illustrates the generic format of the SPI instructions (SPI mode 0,0). Each instruction starts with driving nCS low (falling edge on nCS). The 4-bit command and the 12-bit address are shifted into SDI on the rising edge of SCK. During a write instruction, data bits are shifted into SDI on the rising edge of SCK. During a read instruction, data bits are shifted out of SDO on the falling edge of SCK. One or more data bytes are transfered with one instruction. Data bits are updated on the falling edge of SCK and must be valid on the rising edge of SCK. Each instruction ends with driving nCS high (rising edge on nCS). FIGURE 4-1: 2: In order to minimize the Sleep current, the SDO pin of the MCP2517FD must not be left floating while the device is in Sleep mode. This can be achieved by enabling a pull-up or pull-down resistor inside the MCU on the pin that is connected to the SDO pin of the MCP2517FD, while the MCP2517FD is in Sleep mode. SPI INSTRUCTION FORMAT nCS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 D D D D D D D D D D SCK Sample SDI C C Update C C A A A A A A A A A A A A D Sample D Update SDO D TABLE 4-1: Name D Sample D D SPI INSTRUCTIONS Format Description RESET READ WRITE READ_CRC C = 0b0000; A = 0x000 Resets internal registers to default state; selects Configuration mode. C = 0b0011; A; D = SDO Read SFR/RAM from address A. C = 0b0010; A; D = SDI Write SFR/RAM to address A. C = 0b1011; A; N; Read SFR/RAM from address A. N data bytes. Two bytes CRC. D = SDO; CRC = SDO CRC is calculated on C, A, N and D. WRITE_CRC C = 0b1010; A; N; Write SFR/RAM to address A. N data bytes. Two bytes CRC. D = SDI; CRC = SDI CRC is calculated on C, A, N and D. WRITE_SAFE C = 0b1100; A; Write SFR/RAM to address A. Check CRC before write. CRC is calculated D = SDI; CRC = SDI on C, A and D. Legend: C = Command (4 bit), A = Address (12 bit), D = Data (1 to n bytes), N = Number of Bytes (1 byte), CRC (2 bytes)  2017-2018 Microchip Technology Inc. DS20005688B-page 67 MCP2517FD 4.1 4.1.2 SFR Access The SFR access is byte-oriented. Any number of data bytes can be read or written with one instruction. The address is incremented by one automatically after every data byte. The address rolls over from 0x3FF to 0x000 and from 0xFFF to 0xE00. The following SPI instructions only show the different fields and their values. Every instruction follows the generic format illustrated in Figure 4-1. 4.1.1 Figure 4-2 illustrates the RESET instruction. The instruction starts with nCS going low. The Command (C = 0b0000) is followed by the Address (A = 0x000). The instruction ends when nCS goes high. The RESET instruction should only be issued after the device has entered Configuration mode. All SFR and State Machines are reset just like during a Power-on Reset (POR), and the device transitions immediately to Configuration mode. The Message Memory is not changed. The actual reset happens at the end of the instruction when nCS goes high. FIGURE 4-3: nCS Low 0b0011 FIGURE 4-4: nCS Low 0b0010 DS20005688B-page 68 Figure 4-3 illustrates the READ instruction, while accessing SFR. The instruction starts with nCS going low. The Command (C = 0b0011), is followed by the Address (A). Afterwards, the data byte from address A (DB[A]) is shifted out, followed by data byte from address A+1 (DB[A+1]). Any number of data bytes can be read. The instruction ends when nCS goes high. 4.1.3 RESET SFR READ - READ SFR WRITE - WRITE Figure 4-4 illustrates the WRITE instruction, while accessing SFR. The instruction starts with nCS going low. The Command (C = 0b0010), is followed by the Address (A). Afterwards, the data byte is shifted into address A (DB[A]), next into address A+1 (DB[A+1]). Any number of data bytes can be written. The instruction ends when nCS goes high. Data bytes are written to the register with the falling edge on SCK following the 8th data bit. FIGURE 4-2: nCS Low RESET INSTRUCTION 0b0000 0x000 nCS High SFR READ INSTRUCTION A DB[A] DB[A+1] DB[A+n-1] nCS High DB[A+1] DB[A+n-1] nCS High SFR WRITE INSTRUCTION A DB[A]  2017-2018 Microchip Technology Inc. MCP2517FD 4.2 Message Memory Access The Message Memory (RAM) access is Word-oriented (4 bytes at a time). Any multiple of 4 data bytes can be read or written with one instruction. The address is incremented by one automatically after every data byte. The address rolls over from 0xBFF to 0x400. The following SPI instructions only show the different fields and their values. Every instruction follows the generic format illustrated in Figure 4-1. 4.2.1 MESSAGE MEMORY READ - READ Figure 4-5 illustrates the READ instruction, while accessing RAM. The instruction starts with nCS going low. The Command (C = 0b0011), is followed by the Address (A). Afterwards, the data byte from address A (DB[A]) is shifted out, followed by data byte from address A+1 (DB[A+1]). The instruction ends when nCS goes high. FIGURE 4-5: Read commands from RAM must always read a multiple of 4 data bytes. A word is internally read from RAM after the address field, and after every fourth data byte read on the SPI. In case nCS goes high before a multiple of 4 data bytes is read on SDO, the incomplete read should be discarded by the microcontroller. 4.2.2 MESSAGE MEMORY WRITE WRITE Figure 4-6 illustrates the WRITE instruction, while accessing RAM. The instruction starts with nCS going low. The Command (C = 0b0010), is followed by the Address (A). Afterwards, the data byte is shifted into address A (DB[A]), next into address A+1 (DB[A+1]). The instruction ends when nCS goes high. Write commands must always write a multiple of 4 data bytes. After every fourth data byte, with the falling edge on SCK, the RAM Word gets written. In case nCS goes high before a multiple of 4 data bytes is received on SDI, the data of the incomplete Word will not be written to RAM. MESSAGE MEMORY READ INSTRUCTION DW[A] nCS Low 0b0011 A nCS High DB[A] FIGURE 4-6: DB[A+1] DB[A+2] DB[A+3] DB[A+2] DB[A+3] MESSAGE MEMORY WRITE INSTRUCTION DW[A] nCS Low 0b0010 A nCS High DB[A]  2017-2018 Microchip Technology Inc. DB[A+1] DS20005688B-page 69 MCP2517FD 4.3 SPI Commands with CRC In order to detect or avoid bit errors during SPI communication, SPI commands with CRC are available. 4.3.1 CRC CALCULATION In parallel with the SPI shift register, the CRC is calculated, see Figure 4-7. When nCS is asserted, the CRC calculator is reset to 0xFFFF. The result of the CRC calculation is available after the Data section of a CRC command. The result of the CRC calculation is written to the CRC register in case a CRC mismatch is detected. In case of a CRC mismatch, CRC.CRCERRIF is set. FIGURE 4-7: The MCP2517FD uses the following generator polynomial: CRC-16/USB (0x8005). CRC-16 detects all single and double-bit errors, all errors with an odd number of bits, all burst errors of length 16 or less, and most errors for longer bursts. This allows an excellent detection of SPI communication errors that can happen in the system, and heavily reduces the risk of miscommunication, even under noisy environments. The maximum number of data bits is used while reading and writing TX or RX Message Objects. A RX Message Object with 64 Bytes of data + 12 Bytes ID and Time Stamp contains 76 Bytes or 608 bits. In comparison, USB data packets contain up to 1024 bits. CRC16 has a Hamming Distance of 4 up to 1024 bits. CRC CALCULATION nCS SDI SPI Shift Register SDO SCK SDI SDO CRC command: End of Data section DS20005688B-page 70 Reset Safe CRC Calculator CRC Result  2017-2018 Microchip Technology Inc. MCP2517FD 4.3.2 SFR READ WITH CRC - READ_CRC 4.3.3 SFR WRITE WITH CRC WRITE_CRC Figure 4-8 illustrates the READ_CRC instruction, while accessing SFR. The instruction starts with nCS going low. The Command (C = 0b1011), is followed by the Address (A), and the number of data bytes (N). Afterwards, the data byte from address A (DB[A]) is shifted out, followed by the data byte from address A+1 (DB[A+1]). Any number of data bytes can be read. Next the CRC is shifted out (CRC). The instruction ends when nCS goes high. Figure 4-9 illustrates the WRITE_CRC instruction, while accessing SFR. The instruction starts with nCS going low. The Command (C = 0b1010), is followed by the Address (A), and the number of data bytes (N). Afterwards, the data byte is shifted into address A (DB[A]), next into address A+1 (DB[A+1]). Any number of data bytes can be written. Next the CRC is shifted in (CRC). The instruction ends when nCS goes high. The CRC is provided to the microcontroller. The microcontroller checks the CRC. No interrupt is generated on CRC mismatch during a READ_CRC command inside the MCP2517FD. The SFR is written to the register after the data byte was shifted in on SDI, with the falling edge on SCK. Data bytes are written to the register before the CRC is checked. If nCS goes high before the last byte of the CRC is shifted out, a CRC Form Error interrupt is generated: CRC.FERRIF. The CRC is checked at the end of the write access. In case of a CRC mismatch, a CRC Error interrupt is generated: CRC.CRCERRIF. If nCS goes high before the last byte of the CRC is shifted in, a CRC Form Error interrupt is generated: CRC.FERRIF. FIGURE 4-8: nCS Low SFR READ WITH CRC INSTRUCTION 0b1011 A FIGURE 4-9: nCS Low 4.3.4 N DB[A] DB[A+1] CRC CRC nCS High DB[A+n-1] CRC CRC nCS High SFR WRITE WITH CRC INSTRUCTION 0b1010 A N DB[A] DB[A+1] SFR WRITE SAFE WITH CRC WRITE_SAFE The data byte is only written to the SFR after the CRC is checked and if it matches. If the CRC mismatches, the data byte is not written to the SFR and a CRC Error interrupt is generated: CRC.CRCERRIF. This instruction ensures that only correct data is written to the SFR. Figure 4-10 illustrates the WRITE_SAFE instruction, while accessing SFR. The instruction starts with nCS going low. The Command (C = 0b1100), is followed by the Address (A). Afterwards, one data byte is shifted into address A (DB[A]). Next the CRC (CRC) is shifted in. The instruction ends when nCS goes high. FIGURE 4-10: nCS Low DB[A+n-1] 0b1100 If nCS goes high before the last byte of the CRC is shifted in, a CRC Form Error interrupt is generated: CRC.FERRIF. SFR WRITE SAFE WITH CRC INSTRUCTION A  2017-2018 Microchip Technology Inc. DB[A] CRC CRC nCS High DS20005688B-page 71 MCP2517FD 4.3.5 MESSAGE MEMORY READ WITH CRC- READ_CRC 4.3.6 Figure 4-11 illustrates the READ_CRC instruction, while accessing RAM. The instruction starts with nCS going low. The Command (C = 0b1011), is followed by the Address (A), and the number of data Words (N). Afterwards, the data byte from address A (DB[A]) is shifted out, followed by data byte from address A+1 (DB[A+1]). Next the CRC (CRC) is shifted out. The instruction ends when nCS goes high. MESSAGE MEMORY WRITE WITH CRC - WRITE_CRC Figure 4-12 illustrates the WRITE instruction, while accessing RAM. The instruction starts with nCS going low. The Command (C = 0b1010), is followed by the Address (A), and the number of data Words (N). Afterwards, the data byte is shifted into address A (DB[A]), next into address A+1 (DB[A+1]). Next the CRC (CRC) is shifted in. The instruction ends when nCS goes high. Write commands must always write a multiple of 4 data bytes. After every fourth data byte, with the falling edge on SCK, the RAM gets written. In case nCS goes high before a multiple of 4 data bytes is received on SDI, the data of the incomplete Word will not be written to RAM. Read commands should always read a multiple of 4 data bytes. A word is internally read from RAM after the “N” field, and after every fourth data byte read on the SPI. In case nCS goes high before a multiple of 4 data bytes are read on SDO, the incomplete read should be discarded by the microcontroller. The CRC is checked at the end of the write access. In case of a CRC mismatch, a CRC interrupt is generated: CRC.CRCERRIF. The CRC is provided to the microcontroller. The microcontroller checks the CRC. No interrupt is generated on CRC mismatch during a READ_CRC command inside the MCP2517FD. If nCS goes high before the last byte of the CRC is shifted in, a CRC interrupt is generated: CRC.FERRIF. If nCS goes high before the last byte of the CRC is shifted out, a CRC Form Error interrupt is generated: CRC.FERRIF. FIGURE 4-11: MESSAGE MEMORY READ WITH CRC INSTRUCTION DW[A] nCS Low 0b1011 A N DB[A] FIGURE 4-12: DB[A+1] DB[A+2] CRC CRC nCS High CRC CRC nCS High DB[A+3] MESSAGE MEMORY WRITE WITH CRC INSTRUCTION DW[A] nCS Low 0b1010 A N DB[A] 4.3.7 DB[A+1] MESSAGE MEMORY WRITE SAFE WITH CRC - WRITE_SAFE DB[A+3] address A+1 (DB[A+1]), A+2 (DB[A+2]), and A+3 (DB[A+3]). Next the CRC (CRC) is shifted in. The instruction ends when nCS goes high. This instruction ensures that only correct data is written to RAM. The data word is only written to RAM after the CRC is checked and if it matches. Figure 4-10 illustrates the WRITE_SAFE instruction, while accessing RAM. The instruction starts with nCS going low. The Command (C = 0b1100), is followed by the Address (A). Afterwards, the data byte is shifted into address A (DB[A]), next into FIGURE 4-13: DB[A+2] If the CRC mismatches, the data word is not written to RAM and a CRC Error interrupt is generated: CRC.CRCERRIF. If nCS goes high before the last byte of the CRC is shifted in, a CRC interrupt is generated: CRC.FERRIF. MESSAGE MEMORY WRITE SAFE WITH CRC INSTRUCTION DW[A] nCS Low 0b1100 A CRC DB[A] DS20005688B-page 72 DB[A+1] DB[A+2] CRC nCS High DB[A+3]  2017-2018 Microchip Technology Inc. MCP2517FD 5.0 The time reference for clock generation can be an external 40, 20 or 4 MHz crystal, ceramic resonator or external clock. OSCILLATOR Figure 5-1 shows the block diagram of the oscillator in the MCP2517FD. The oscillator system generates the SYSCLK, which is used in the CAN FD Controller Module and for RAM accesses. It is recommended by the CAN FD community to use either a 40 or 20 MHz SYSCLK. FIGURE 5-1: The OSC register controls the oscillator. The PLL can be enabled to multiply the 4 MHz clock by 10. The internal 40/20 MHz can be divided by two. The internally generated clock can be divided and provided on the CLKO pin. MCP2517FD OSCILLATOR BLOCK DIAGRAM OSC1 CLKODIV RU0+] &/.,1 &U\VWDORU &HUDPLF5HV Divide By 1, 2, 4, 10 OSCDIS OSC2 PLL x10 40/20 MHz Divide By 1, 2 PLLEN  2017-2018 Microchip Technology Inc. CLKO SYSCLK SCLKDIV DS20005688B-page 73 MCP2517FD 6.0 • INTOD: The interrupt pins can be configured as open-drain or push/pull outputs. I/O CONFIGURATION The IOCON register is used to configure the I/O pins: • CLKO/SOF: select Clock Output or Start of Frame. • TXCANOD: TXCAN can be configured as PushPull or as Open Drain output. Open Drain outputs allows the user to connect multiple controllers together to build a CAN network without using a transceiver. • INT0 and INT1 can be configured as GPIO with similar registers as in the PIC microcontrollers or as Transmit and Receive interrupts. • INT0/GPIO0/XSTBY can also be used to automatically control the standby pin of the transceiver. FIGURE 6-1: 6.1 Interrupt Pins The MCP2517FD contains three different interrupt pins, see Figure 6-1: • INT is asserted on any interrupt in the CiINT register (xIF & xIE), including the RX and TX interrupts. • INT1/GPIO1 can be configured as GPIO or RX interrupt pin (CiINT.RXIF & RXIE). • INT0/GPIO0 can be configured as GPIO or TX interrupt pin (CiINT.TXIF & TXIE). All interrupt pins are active low. INTERRUPT PINS INT1 RX Interrupt INT INT0 TX Interrupt OR Info Interrupt DS20005688B-page 74  2017-2018 Microchip Technology Inc. MCP2517FD 7.0 ELECTRICAL SPECIFICATIONS 7.1 Absolute Maximum Ratings† VDD.............................................................................................................................................................. –0.3V to 6.0V DC Voltage at all I/O w.r.t GND ........................................................................................................–0.3V to VDD + 0.3V Virtual Junction Temperature, TVJ (IEC60747-1) ................................................................................... –40°C to +165°C Soldering temperature of leads (10 seconds) ....................................................................................................... +300°C ESD protection on all pins (IEC 801; Human Body Model)...................................................................................... ±4 kV ESD protection on all pins (IEC 801; Machine Model) ............................................................................................±400V ESD protection on all pins (IEC 801; Charge Device Model)..................................................................................±750V † NOTICE: Stresses above those listed under “Maximum ratings” may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods may affect device reliability.  2017-2018 Microchip Technology Inc. DS20005688B-page 75 MCP2517FD TABLE 7-1: DC CHARACTERISTICS DC Specifications Sym. Electrical Characteristics: High (H): TAMB = –40°C to +150°C; VDD = 2.7V to 5.5V Characteristic Min. Typ. Max. Units Conditions/Comments VDD Voltage Range 2.7 5.5 V RAM data retention guaranteed VPORH Power-on Reset Voltage 2.65 V Highest voltage on VDD before device releases POR VPORL Power-on Reset Voltage 2.2 V Lowest voltage on VDD before device asserts POR SVDD VDD Rise Rate to ensure POR 0.05 V/ms IDD Supply Current 15 20 mA 40 MHz SYSCLK, 20 MHz SPI activity IDDS Sleep Current 10 60 A Clock is stopped TAMB ≤ +85°C (Note 1) VDD Pin 550 Note 1 Clock is stopped TAMB ≤ +150°C Digital Input Pins: VIH High-Level Input Voltage 0.7 VDD VDD + 0.3 V VIL Low-Level Input Voltage –0.3 0.3 VDD V VOSCPP OSC1 detection Voltage 0.5 ILI Input Leakage Current V OSC1 –5 +5 A All other –1 +1 A Minimum peak-to-peak voltage on OSC1 pin (Note 1) Digital Output Pins: VOH High-Level Output Voltage VDD – 0.7 VOL Low-Level Output Voltage Note 1: V IOH = –2 mA, VDD = 2.7V TXCAN 0.6 V IOL = 8 mA, VDD = 2.7V All other 0.6 V IOL = 2 mA, VDD = 2.7V Characterized; not 100% tested. TABLE 7-2: CLKOUT AND SOF AC CHARACTERISTICS AC Specifications Electrical Characteristics: High (H): TAMB = -40°C to +150°C; VDD = 2.7V to 5.5V Sym. Characteristic Min. TCLKOH CLKO Output High 8 ns @ 40 MHz (Note 1) TCLKOL CLKO Output Low 8 ns Note 1 TCLKOR CLKO Output Rise 5 ns Note 1 TCLKOF CLKO Output Fall 5 ns Note 1 TSOFH SOF Output High 31 TOSC ns Note 2 TSOFPD SOF Propagation Delay: RXCAN falling edge to SOF rising edge 1 TOSC ns Note 2 Note 1: 2: Typ. Max. Units Conditions/Comments Characterized; not 100% tested. Design guidance only. DS20005688B-page 76  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 7-3: CRYSTAL OSCILLATOR AC CHARACTERISTICS AC Specifications Electrical Characteristics: High (H): TAMB = –40°C to +150°C; VDD = 2.7V to 5.5V Sym. Characteristic Min. Typ. FOSC1,CLKI FOSC1,4M FDRIFT SYSCLK frequency drift FOSC1,20M OSC1 Input Frequency 20 – 0.5% FOSC1,40M OSC1 Input Frequency 40 – 0.5% Max. Units OSC1 Input Frequency 2 OSC1 Input Frequency 4 – 0.5% Conditions/Comments 40 40 MHz External digital clock 4 4+0.5% MHz 4 MHz crystal/resonator (Note 1) 10 ppm Additional frequency drift of SYSCLK due to internal PLL @ 4 MHz (Note 1) 20 20+0.5% MHz 20 MHz crystal/resonator (Note 1) 40 40+0.5% MHz 40 MHz crystal/resonator (Note 1) TOSC1 TOSC1=1/FOSC1,x 25 TOSC1H OSC1 Input High 0.45 * TOSC 0.55 * TOSC ns Note 1 TOSC1L OSC1 Input Low 0.45 * TOSC 0.55 * TOSC ns Note 1 TOSC1R OSC1 Input Rise 20 ns Note 2 TOSC1F OSC1 Input Fall 20 ns Note 2 DCOSC1 Duty Cycle on OSC1 55 % External clock duty cycle requirement (Note 1) TOSCSTAB Oscillator stabilization period 3 ms From POR to final frequency (Note 1) 3 ms From Sleep to final frequency (Note 1) 45 ns 50 TOSCSLEEP Oscillator stabilization from Sleep GM,4M Transconductance 1470 2210 A/V 4 MHz crystal (Note 2) GM,40M Transconductance 2040 3060 A/V 40 MHz crystal (Note 2) Note 1: 2: Characterized; not 100% tested. Design guidance only. TABLE 7-4: CAN BIT RATE AC Specifications Electrical Characteristics: High (H): TAMB = –40°C to +150°C; VDD = 2.7V to 5.5V Sym. Characteristic Min. Typ. Max. Units BRNOM Nominal Bit Rate 0.125 0.5 1 Mbps BRDATA Data Bit Rate 0.5 2 8 Mbps Note 1: Conditions/Comments BRDATA ≥ BRNOM Tested bit rates. Device allows the configuration of more bit rates, including slower bit rates than the minimum stated.  2017-2018 Microchip Technology Inc. DS20005688B-page 77 MCP2517FD TABLE 7-5: CAN RX FILTER AC CHARACTERISTICS AC Specifications Electrical Characteristics: High (H): TAMB = –40°C to +150°C; VDD = 2.7V to 5.5V Sym. Characteristic Min. TPROP Filter propagation delay TFILTER Filter time (Note 3) 40 70 125 225 TREVO- Minimum high time on input for output to go high again 5 CERY Note 1: 2: 3: Typ. Max. Units 1 75 120 215 390 Conditions/Comments ns Note 2 ns T00FILTER T01FILTER T10FILTER T11FILTER ns Note 2 Characterized; not 100% tested. Design guidance only. Pulses on RXCAN shorter than the minimum TFILTER time will be ignored; pulses longer than the maximum TFILTER time will wake-up the device. TABLE 7-6: SPI AC CHARACTERISTICS AC Specifications Param. 1 Electrical Characteristics: High (H): TAMB = –40°C to +150°C; VDD = 2.7V to 5.5V Sym. Characteristic FSCK SCK Input Frequency TSCK SCK Period, TSCK=1/FSCK TSCKH Min. Typ. Max. Units 20 MHz Note 3 Conditions 50 ns Note 3 SCK High Time 20 ns 20 2 TSCKL SCK Low Time 3 TSCKR SCK Rise Time 100 ns ns Note 2 4 TSCKF SCK Fall Time 100 ns Note 2 5 TCS2SCK nCS ↓ to SCK ↑ TSCK/2 ns 6 TSCK2CS SCK ↑ to nCS ↑ TSCK ns 7 TSDI2SCK SDI Setup: SDI ↕ to SCK ↑ 5 ns 8 TSCK2SDI SDI Hold: SCK ↑ to SDI ↕ 5 ns 9 TSCK2SDO SDO Valid: SCK ↓ to SDO ↕ 10 TCS2SDOZ SDO High Z: nCS ↑ to SDO Z 11 Note 1: 2: 3: nCS ↑ to nCS ↓ TCSD TSCK 20 ns CLOAD = 50 pF 2 TSCK ns CLOAD = 50 pF ns Note 2 Characterized; not 100% tested. Design guidance only. FSCK must be less than or equal to FSYSCLK/2. FIGURE 7-1: SPI I/O TIMING 11 nCS 5 1 SCK 3 6 Mode 1,1 Mode 0,0 Mode 0,0 7 SDI 2 4 Mode 1,1 8 C A D 9 SDO DS20005688B-page 78 D 9 D 10 D  2017-2018 Microchip Technology Inc. MCP2517FD TABLE 7-7: TEMPERATURE SPECIFICATIONS Parameters Sym. Min. Operating Temperature Range TA Storage Temperature Range Typ. Max. Units –40 +150 °C TA –55 +150 °C Thermal Resistance for SOIC-14 JA — +149.5 — °C/W Thermal Resistance for DFN-14 JA — +64.1 — °C/W Conditions Temperature Ranges Thermal Package Resistance  2017-2018 Microchip Technology Inc. DS20005688B-page 79 MCP2517FD NOTES: DS20005688B-page 80  2017-2018 Microchip Technology Inc. MCP2517FD 8.0 TYPICAL PERFORMANCE CURVES The graphs and tables provided following this note are a statistical summary based on a limited number of samples and are provided for informational purposes only. The performance characteristics listed herein are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified operating range (e.g., outside specified power supply range) and therefore outside the warranted range. Note: 400 350 300 IDDS [uA] 250 200 VDD=3.3V VDD=5.5V 150 100 50 0 -40 -20 0 FIGURE 8-1: Temperature 20 40 60 80 Temperature [°C] 100 120 140 160 Average IDDS vs.  2017-2018 Microchip Technology Inc. DS20005688B-page 81 MCP2517FD NOTES: DS20005688B-page 82  2017-2018 Microchip Technology Inc. MCP2517FD 9.0 PACKAGING INFORMATION 9.1 Package Marking Information 14-Lead SOIC Example: MCP2517FD SL e3 1644256 14-Lead VDFN Example: 2517FD e3 JHA^^ 644256 Legend: XX...X Y YY WW NNN e3 * Note: Customer-specific information Year code (last digit of calendar year) Year code (last 2 digits of calendar year) Week code (week of January 1 is week ‘01’) Alphanumeric traceability code Pb-free JEDEC® designator for Matte Tin (Sn) This package is Pb-free. The Pb-free JEDEC designator ( e3 ) can be found on the outer packaging for this package. In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information.  2017-2018 Microchip Technology Inc. DS20005688B-page 83 MCP2517FD Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging DS20005688B-page 84  2017-2018 Microchip Technology Inc. MCP2517FD Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging  2017-2018 Microchip Technology Inc. DS20005688B-page 85 MCP2517FD 1RWH   !" #$ %!&!! '#(  $ )**%%%  *# DS20005688B-page 86  2017-2018 Microchip Technology Inc. MCP2517FD 14-Lead Very Thin Plastic Quad Flat, No Lead Package (JHA) - 4.5x3.0 mm Body [VDFN] With Dimpled Wettable Flanks Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging D A B N (DATUM A) (DATUM B) E NOTE 1 2X 0.15 C 1 2X 2 TOP VIEW 0.15 C 0.10 C C A A1 SEATING PLANE 16X (A3) SIDE VIEW 0.10 D2 1 0.08 C C A B A 2 A E2 L (K) N 14X b 0.10 0.05 e C A B C BOTTOM VIEW Microchip Technology Drawing C04-1198A Sheet 1 of 2  2017-2018 Microchip Technology Inc. DS20005688B-page 87 MCP2517FD 14-Lead Very Thin Plastic Quad Flat, No Lead Package (JHA) - 4.5x3.0 mm Body [VDFN] With Dimpled Wettable Flanks Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Cu TERMINAL 0.15±0.05 0.04 MIN PLASTIC MOLD COMPOUND SECTION A-A Units Dimension Limits Number of Terminals N e Pitch Overall Height A Standoff A1 A3 Terminal Thickness Overall Length D Exposed Pad Length D2 Overall Width E E2 Exposed Pad Width Terminal Width b Terminal Length L Terminal-to-Exposed-Pad K MIN 0.80 0.00 4.15 1.55 0.29 0.35 MILLIMETERS NOM 14 0.65 BSC 0.85 0.02 0.203 REF 4.50 BSC 4.20 3.00 BSC 1.60 0.32 0.40 0.30 REF MAX 0.90 0.05 4.25 1.65 0.35 0.45 Notes: 1. Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Package is saw singulated 3. Dimensioning and tolerancing per ASME Y14.5M BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. Microchip Technology Drawing C04-1198A Sheet 2 of 2 DS20005688B-page 88  2017-2018 Microchip Technology Inc. MCP2517FD 14-Lead Very Thin Plastic Quad Flat, No Lead Package (JHA) - 4.5x3.0 mm Body [VDFN] With Dimpled Wettable Flanks Note: For the most current package drawings, please see the Microchip Packaging Specification located at http://www.microchip.com/packaging Y2 EV G2 14 ØV C X2 EV G1 Y1 1 2 X1 SILK SCREEN E RECOMMENDED LAND PATTERN Units Dimension Limits E Contact Pitch Optional Center Pad Width X2 Optional Center Pad Length Y2 Contact Pad Spacing C Contact Pad Width (X14) X1 Contact Pad Length (X14) Y1 Contact Pad to Center Pad (X14) G1 Spacing Between Contacts (X12) G1 Thermal Via Diameter V Thermal Via Pitch EV MIN MILLIMETERS NOM 0.65 BSC MAX 1.65 4.25 3.00 0.35 0.85 0.25 0.30 0.30 1.00 Notes: 1. Dimensioning and tolerancing per ASME Y14.5M BSC: Basic Dimension. Theoretically exact value shown without tolerances. 2. For best soldering results, thermal vias, if used, should be filled or tented to avoid solder loss during reflow process Microchip Technology Drawing C04-3198A  2017-2018 Microchip Technology Inc. DS20005688B-page 89 MCP2517FD NOTES: DS20005688B-page 90  2017-2018 Microchip Technology Inc. MCP2517FD APPENDIX A: REVISION HISTORY Revision B (May 2018) The following is the list of modifications: 1. 2. 3. 4. Updated the Active Current value in the Features section. Updated Register 3-28, Register 3-29 and Register 3-32. Updated Section 6.1 “Interrupt Pins”. Updated Table 7-4. Revision A (August 2017) • Original Release of this Document.  2017-2018 Microchip Technology Inc. DS20005688B-page 91 MCP2517FD NOTES: DS20005688B-page 92  2017-2018 Microchip Technology Inc. MCP2517FD APPENDIX B: CAN FD CONFORMANCE ISO 11898-1:2015 lists non-mandatory features. Table B-1 clarifies which optional features are implemented. The MCP2517FD passed the CAN FD conformance tests specified in ISO 16845-1:2016. TABLE B-1: No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ISO OPTIONAL FEATURES Optional Feature FD frame format Disabling of frame formats Limited LLC frames No transmission of frames including padding bytes LLC Abort interface ESI and BRS bit values Method to provide MAC data consistency Time and time triggering Time stamping Bus monitoring mode Handle Restricted operation Separate prescalers for nominal bits and for data bits Disabling of automatic retransmission Maximum number of retransmissions Disabling of protocol exception event on res bit detected recessive PCS_Status Edge filtering during the bus integration state Time resolution for SSP placement FD_T/R message  2017-2018 Microchip Technology Inc. Implemented Yes Yes. Classical CAN frame format. No. Full range of IDs and DLCs implemented. N/A. See No. 3. Yes Yes Yes Start of Frame output. Yes. 32 bit TBC. Yes Yes Yes Yes Yes Yes. One, 3, or unlimited. Yes. Selectable. No Yes. Selectable. Yes. 128 TQ. Measured, manual or disabled. TX and RX interrupts. DS20005688B-page 93 MCP2517FD NOTES: DS20005688B-page 94  2017-2018 Microchip Technology Inc. MCP2517FD PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. PART NO. [X](1) –X /XX Examples: a) Device Tape and Reel Temperature Range Package Device: MCP2517FD: CAN FD Controller Tape and Reel Option: Blank = Standard packaging (tube or tray) b) c) = Tape and Reel (1) T d) Temperature Range: H = -40°C to +150°C (High) Package: SL = Plastic SOIC (150 mil Body), 14-Lead JHA = Plastic VDFN (4.5x3 mm Body), 14-Lead with Dimpled Wettable Flanks  2017-2018 Microchip Technology Inc. MCP2517FD-H/SL: High Temperature, Plastic SOIC (150 mil Body), 14-Lead MCP2517FDT-H/SL: Tape and Reel, High Temperature, Plastic SOIC (150 mil Body), 14-Lead MCP2517FD-H/JHA: High Temperature, VDFN (4.5x3 mm Body), 14-Lead with Dimpled Wettable Flanks MCP2517FDT-H/JHA: Tape and Reel, High Temperature, VDFN (4.5x3 mm Body), 14-Lead with Dimpled Wettable Flanks Note 1: Tape and Reel identifier only appears in the catalog part number description. This identifier is used for ordering purposes and is not printed on the device package. Check with your Microchip Sales Office for package availability with the Tape and Reel option. DS20005688B-page 95 MCP2517FD NOTES: DS20005688B-page 96  2017-2018 Microchip Technology Inc. Worldwide Sales and Service AMERICAS ASIA/PACIFIC ASIA/PACIFIC EUROPE Corporate Office 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 480-792-7200 Fax: 480-792-7277 Technical Support: http://www.microchip.com/ support Web Address: www.microchip.com Australia - Sydney Tel: 61-2-9868-6733 India - Bangalore Tel: 91-80-3090-4444 China - Beijing Tel: 86-10-8569-7000 India - New Delhi Tel: 91-11-4160-8631 Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 China - Chengdu Tel: 86-28-8665-5511 India - Pune Tel: 91-20-4121-0141 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 China - Chongqing Tel: 86-23-8980-9588 Japan - Osaka Tel: 81-6-6152-7160 Finland - Espoo Tel: 358-9-4520-820 China - Dongguan Tel: 86-769-8702-9880 Japan - Tokyo Tel: 81-3-6880- 3770 China - Guangzhou Tel: 86-20-8755-8029 Korea - Daegu Tel: 82-53-744-4301 France - Paris Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79 China - Hangzhou Tel: 86-571-8792-8115 Korea - Seoul Tel: 82-2-554-7200 China - Hong Kong SAR Tel: 852-2943-5100 Malaysia - Kuala Lumpur Tel: 60-3-7651-7906 China - Nanjing Tel: 86-25-8473-2460 Malaysia - Penang Tel: 60-4-227-8870 China - Qingdao Tel: 86-532-8502-7355 Philippines - Manila Tel: 63-2-634-9065 China - Shanghai Tel: 86-21-3326-8000 Singapore Tel: 65-6334-8870 China - Shenyang Tel: 86-24-2334-2829 Taiwan - Hsin Chu Tel: 886-3-577-8366 China - Shenzhen Tel: 86-755-8864-2200 Taiwan - Kaohsiung Tel: 886-7-213-7830 Israel - Ra’anana Tel: 972-9-744-7705 China - Suzhou Tel: 86-186-6233-1526 Taiwan - Taipei Tel: 886-2-2508-8600 China - Wuhan Tel: 86-27-5980-5300 Thailand - Bangkok Tel: 66-2-694-1351 Italy - Milan Tel: 39-0331-742611 Fax: 39-0331-466781 China - Xian Tel: 86-29-8833-7252 Vietnam - Ho Chi Minh Tel: 84-28-5448-2100 Atlanta Duluth, GA Tel: 678-957-9614 Fax: 678-957-1455 Austin, TX Tel: 512-257-3370 Boston Westborough, MA Tel: 774-760-0087 Fax: 774-760-0088 Chicago Itasca, IL Tel: 630-285-0071 Fax: 630-285-0075 Dallas Addison, TX Tel: 972-818-7423 Fax: 972-818-2924 Detroit Novi, MI Tel: 248-848-4000 Houston, TX Tel: 281-894-5983 Indianapolis Noblesville, IN Tel: 317-773-8323 Fax: 317-773-5453 Tel: 317-536-2380 Los Angeles Mission Viejo, CA Tel: 949-462-9523 Fax: 949-462-9608 Tel: 951-273-7800 Raleigh, NC Tel: 919-844-7510 New York, NY Tel: 631-435-6000 San Jose, CA Tel: 408-735-9110 Tel: 408-436-4270 Canada - Toronto Tel: 905-695-1980 Fax: 905-695-2078 DS20005688B-page 98 China - Xiamen Tel: 86-592-2388138 China - Zhuhai Tel: 86-756-3210040 Germany - Garching Tel: 49-8931-9700 Germany - Haan Tel: 49-2129-3766400 Germany - Heilbronn Tel: 49-7131-67-3636 Germany - Karlsruhe Tel: 49-721-625370 Germany - Munich Tel: 49-89-627-144-0 Fax: 49-89-627-144-44 Germany - Rosenheim Tel: 49-8031-354-560 Italy - Padova Tel: 39-049-7625286 Netherlands - Drunen Tel: 31-416-690399 Fax: 31-416-690340 Norway - Trondheim Tel: 47-7289-7561 Poland - Warsaw Tel: 48-22-3325737 Romania - Bucharest Tel: 40-21-407-87-50 Spain - Madrid Tel: 34-91-708-08-90 Fax: 34-91-708-08-91 Sweden - Gothenberg Tel: 46-31-704-60-40 Sweden - Stockholm Tel: 46-8-5090-4654 UK - Wokingham Tel: 44-118-921-5800 Fax: 44-118-921-5820  2017-2018 Microchip Technology Inc. 10/25/17 Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data Sheets. Most likely, the person doing so is engaged in theft of intellectual property. • Microchip is willing to work with the customer who is concerned about the integrity of their code. • Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable.” Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act. Information contained in this publication regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer’s risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights unless otherwise stated. Microchip received ISO/TS-16949:2009 certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India. The Company’s quality system processes and procedures are for its PIC® MCUs and dsPIC® DSCs, KEELOQ® code hopping devices, Serial EEPROMs, microperipherals, nonvolatile memory and analog products. In addition, Microchip’s quality system for the design and manufacture of development systems is ISO 9001:2000 certified. QUALITY MANAGEMENT SYSTEM CERTIFIED BY DNV Trademarks The Microchip name and logo, the Microchip logo, AnyRate, AVR, AVR logo, AVR Freaks, BeaconThings, BitCloud, chipKIT, chipKIT logo, CryptoMemory, CryptoRF, dsPIC, FlashFlex, flexPWR, Heldo, JukeBlox, KEELOQ, KEELOQ logo, Kleer, LANCheck, LINK MD, maXStylus, maXTouch, MediaLB, megaAVR, MOST, MOST logo, MPLAB, OptoLyzer, PIC, picoPower, PICSTART, PIC32 logo, Prochip Designer, QTouch, RightTouch, SAM-BA, SpyNIC, SST, SST Logo, SuperFlash, tinyAVR, UNI/O, and XMEGA are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. ClockWorks, The Embedded Control Solutions Company, EtherSynch, Hyper Speed Control, HyperLight Load, IntelliMOS, mTouch, Precision Edge, and Quiet-Wire are registered trademarks of Microchip Technology Incorporated in the U.S.A. Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BodyCom, CodeGuard, CryptoAuthentication, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, InterChip Connectivity, JitterBlocker, KleerNet, KleerNet logo, Mindi, MiWi, motorBench, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PureSilicon, QMatrix, RightTouch logo, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. Silicon Storage Technology is a registered trademark of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies. © 2017-2018, Microchip Technology Incorporated, All Rights Reserved. ISBN: 978-1-5224-2985-2 == ISO/TS 16949 ==  2017-2018 Microchip Technology Inc. DS20005688B-page 97