TMS320C40GFL40

TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 D D D D D D D D D D D D D D Highest Performance Floating-Point Digital Signal Processor (DSP) – ’320C40-60: 33-ns Instruction Cycle Time, 330 MOPS, 60 MFLOPS, 30 MIPS, 384M Bytes / s – ’320C40-50: 40-ns Instruction Cycle Time – ’320C40-40: 50-ns Instruction Cycle Time Six Communications Ports Six-Channel Direct Memory Access (DMA) Coprocessor Single-Cycle Conversion to and From IEEE-754 Floating-Point Format Single Cycle, 1/x, 1/Ǹ x Source-Code Compatible With TMS320C3x Single-Cycle 40-Bit Floating-Point, 32-Bit Integer Multipliers Twelve 40-Bit Registers, Eight Auxiliary Registers, 14 Control Registers, and Two Timers IEEE 1149.1† (JTAG) Boundary Scan Compatible Two Identical External Data and Address Buses Supporting Shared Memory Systems and High Data-Rate, Single-Cycle Transfers: – High Port-Data Rate of 120M Bytes/s (’C40-60) (Each Bus) – 16G-Byte Continuous Program/ Data / Peripheral Address Space – Memory-Access Request for Fast, Intelligent Bus Arbitration – Separate Address-Bus, Data-Bus, and Control-Enable Pins – Four Sets of Memory-Control Signals Support Different Speed Memories in Hardware 325-Pin Ceramic Grid Array (GF Suffix) Fabricated Using 0.72-µm Enhanced Performance Implanted CMOS (EPIC) Technology by Texas Instruments (TI) Software-Communication-Port Reset NMI With Bus-Grant Feature 325-PIN GF GRID ARRAY PACKAGE (BOTTOM VIEW)‡ AR AP AN AM AL AK AJ AH AG AF AE AD AC AB AA Y W V U T R P N M L K J H G F E D C B A 2 1 4 3 6 5 7 8 10 12 14 16 18 20 22 24 26 28 30 32 34 9 11 13 15 17 19 21 23 25 27 29 31 33 35 Pin A1 ‡ See Pin Assignments table and Pin Functions table for location and description of all pins. D D D D Separate Internal Program, Data, and DMA Coprocessor Buses for Support of Massive Concurrent Input / Output (I/O) of Program and Data Throughput, Maximizing Sustained Central Processing Unit (CPU) Performance On-Chip Program Cache and Dual-Access/Single-Cycle RAM for Increased Memory-Access Performance – 512-Byte Instruction Cache – 8K Bytes of Single-Cycle Dual-Access Program or Data RAM – ROM-Based Boot Loader Supports Program Bootup Using 8-, 16-, or 32-Bit Memories or One of the Communication Ports IDLE2 Clock-Stop Power-Down Mode 5-V Operation Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. † IEEE Standard 1149.1–1990 Standard Test-Access Port and Boundary-Scan Architecture EPIC and TI are trademarks of Texas Instruments Incorporated. Copyright  1996, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 1 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 block diagram Cache (512 Bytes) 32 RAM Block 1 (4K Bytes) RAM Block 0 (4K Bytes) 32 32 32 32 ROM Block (Reserved) 32 32 32 Continued on next page PDATA Bus D(31–0) A(30–0) DE AE STAT(3 – 0) LOCK STRB0, STRB1 R / W0, R / W1 PAGE0, PAGE1 RDY0, RDY1 CE0, CE1 PADDR Bus DDATA Bus M U X DADDR 1 Bus DADDR 2 Bus DMADATA Bus DMAADDR Bus 32 32 32 MUX IR CPU1 PC X1 X2/CLKIN CPU2 REG1 ROMEN RESET C P U 1 NMI IIOF(3 – 0) IACK H1 H3 CVSS DVDD DVSS IVSS LADVDD LDDVDD VDDL VSSL SUBS Controller RESETLOC0 RESETLOC1 R E G 1 R E G 2 REG2 40 40 40 40 32-Bit Barrel Shifter Multiplier ALU 40 40 40 40 32 40 Extended Precision Registers (R0–R11) 40 DISP, IR0, IR1 ARAU0 ARAU1 BK 32 32 32 32 32 32 32 Auxiliary Registers (AR0–AR7) 32 32 32 32 2 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 Other Registers (14) 32 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 PDATA Bus LD31 – LD0 LA30 – LA0 LDE LAE LSTAT3 – LSTAT0 LLOCK LSTRB0 – LSTRB1 LR / W0 – LR / W1 LPAGE0 – LPAGE1 LRDY0 – LRDY1 LCE0,LCE1 PADDR Bus DDATA Bus M U X DADDR 1 Bus DADDR 2 Bus DMADATA Bus DMAADDR Bus MUX DMA Coprocessor DMA Channel 0 DMA Channel 1 DMA Channel 2 DMA Channel 3 DMA Channel 4 DMA Channel 5 Six DMA Channels COM Port 0 Input FIFO PAU Output FIFO Port-Control Registers COM Port 5 Input FIFO PAU Output FIFO CREQ0 CACK0 CSTRB0 CRDY0 C0D7–C0D0 CREQ5 CACK5 CSTRB5 CRDY5 C5D7– C5D0 Six Communication Ports 32 Peripheral Address Bus 32 Peripheral Data Bus Continued from previous page block diagram (continued) Port-Control Registers Timer 0 Global-Control Register Time-Period Register Timer-Counter Register TCLK0 Timer 1 Global-Control Register Time-Period Register Timer-Counter Register TCLK1 Port Control Global Local POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 3 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 functions This section lists signal descriptions for the ’320C40 device. The ’320C40 pin functions table lists each signal, number of pins, operating mode(s) (that is, input, output, or high-impedance state as indicated by I, O, or Z, respectively), and function. The signals are grouped according to function. Pin Functions NO. OF PINS TYPE† D31 – D0 32 I/O/Z DE 1 I A30 – A0 31 O/Z AE 1 I Address-bus-enable signal for the global-bus external interface STAT3 – STAT0 4 O Status signals for the global-bus external interface LOCK 1 O Lock signal for the global-bus external interface STRB0‡ R / W0‡ 1 O/Z Access strobe 0 for the global-bus external interface 1 O/Z Read / write signal for STRB0 accesses PAGE0‡ RDY0‡ 1 O/Z Page signal for STRB0 accesses 1 I Ready signal for STRB0 accesses CE0‡ 1 I Control enable for the STRB0, PAGE0, and R / W0 signals STRB1‡ R / W1‡ 1 O/Z Access strobe 1 for the global-bus external interface 1 O/Z Read / write signal for STRB1 accesses PAGE1‡ RDY1‡ 1 O/Z Page signal for STRB1 accesses 1 I Ready signal for STRB1 accesses CE1‡ 1 I NAME DESCRIPTION GLOBAL-BUS EXTERNAL INTERFACE ( 80 PINS) 32-bit data port of the global-bus external interface Data-bus-enable signal for the global-bus external interface 31-bit address port of the global-bus external interface Control enable for the STRB1, PAGE1, and R / W1 signals LOCAL-BUS EXTERNAL INTERFACE ( 80 PINS) LD31 – LD0 32 I/O/Z 32-bit data port of the local-bus external interface LDE 1 I LA30 – LA0 31 O/Z Data-bus-enable signal for the local-bus external interface LAE 1 I Address-bus-enable signal for the local-bus external interface LSTAT3 – LSTAT0 4 O Status signals for the local-bus external interface LLOCK 1 O Lock signal for the local-bus external interface LSTRB0‡ 1 O/Z Access strobe 0 for the local-bus external interface LR / W0 1 O/Z Read / write signal for LSTRB0 accesses LPAGE0 1 O/Z Page signal for LSTRB0 accesses LRDY0 1 I Ready signal for LSTRB0 accesses LCE0 1 I Control enable for the LSTRB0, LPAGE0, and LR / W0 signals LSTRB1‡ 1 O/Z Access strobe 1 for the local-bus external interface LR / W1 1 O/Z Read / write signal for LSTRB1 accesses LPAGE1 1 O/Z Page signal for LSTRB1 accesses LRDY1 1 I Ready signal for LSTRB1 accesses 31-bit address port of the local-bus external interface LCE1 1 I Control enable for the LSTRB1, LPAGE1, and LR / W1 signals † I = input, O = output, Z = high impedance ‡ Signal’s effective address range is defined by the local / global STRB ACTIVE bits. 4 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 Pin Functions ( Continued) NAME NO. OF PINS TYPE† DESCRIPTION COMMUNICATION PORT 0 INTERFACE ( 12 PINS) C0D7 – C0D0 8 I/O Communication port 0 data bus CREQ0 1 I/O Communication port 0 token-request signal CACK0 1 I/O Communication port 0 token-request-acknowledge signal CSTRB0 1 I/O Communication port 0 data-strobe signal CRDY0 1 I/O Communication port 0 data-ready signal C1D7 – C1D0 8 I/O Communication port 1 data bus CREQ1 1 I/O Communication port 1 token-request signal CACK1 1 I/O Communication port 1 token-request-acknowledge signal CSTRB1 1 I/O Communication port 1 data-strobe signal CRDY1 1 I/O COMMUNICATION PORT 1 INTERFACE ( 12 PINS) Communication port 1 data-ready signal COMMUNICATION PORT 2 INTERFACE ( 12 PINS) C2D7 – C2D0 8 I/O Communication port 2 data bus CREQ2 1 I/O Communication port 2 token-request signal CACK2 1 I/O Communication port 2 token-request-acknowledge signal CSTRB2 1 I/O Communication port 2 data-strobe signal CRDY2 1 I/O Communication port 2 data-ready signal COMMUNICATION PORT 3 INTERFACE ( 12 PINS) C3D7 – C3D0 8 I/O Communication port 3 data bus CREQ3 1 I/O Communication port 3 token-request signal CACK3 1 I/O Communication port 3 token-request-acknowledge signal CSTRB3 1 I/O Communication port 3 data-strobe signal CRDY3 1 I/O Communication port 3 data-ready signal COMMUNICATION PORT 4 INTERFACE ( 12 PINS) C4D7 – C4D0 8 I/O Communication port 4 data bus CREQ4 1 I/O Communication port 4 token-request signal CACK4 1 I/O Communication port 4 token-request-acknowledge signal CSTRB4 1 I/O Communication port 4 data-strobe signal CRDY4 1 I/O Communication port 4 data-ready signal C5D7 – C5D0 8 I/O Communication port 5 data bus CREQ5 1 I/O Communication port 5 token-request signal CACK5 1 I/O Communication port 5 token-request-acknowledge signal CSTRB5 1 I/O Communication port 5 data-strobe signal COMMUNICATION PORT 5 INTERFACE ( 12 PINS) CRDY5 1 I/O † I = input, O = output, Z = high impedance Communication port 5 data-ready signal POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 5 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 Pin Functions ( Continued) NAME NO. OF PINS TYPE† DESCRIPTION INTERRUPTS, I / O FLAGS, RESET, TIMER ( 12 PINS) IIOF3 – IIOF0 4 I/O NMI 1 I Interrupt and I / O flags Nonmaskable interrupt. NMI is sensitive to a low-going edge. IACK 1 O Interrupt acknowledge RESET 1 I Reset signal RESETLOC1 – RESETLOC0 2 I Reset-vector location pins ROMEN 1 I On-chip ROM enable ( 0 = disable, 1 = enable) TCLK0 1 I/O Timer 0 pin TCLK1 1 I/O Timer 1 pin CLOCK ( 4 PINS) X1 1 O Crystal pin X2 / CLKIN 1 I Crystal / oscillator pin H1 1 O H1 clock H3 1 O H3 clock POWER ( 70 PINS) CVSS 15 I Ground pins DVSS 15 I Ground pins IVSS DVDD 6 I Ground pins 13 I GADVDD 3 I 5-VDC supply pins 5-VDC supply pins GDDVDD 3 I LADVDD LDDVDD 3 I 3 I SUBS 1 I VDDL VSSL 4 I 4 I 5-VDC supply pins Ground pins TCK 1 I IEEE 1149.1 test port clock TDO 1 O/Z TDI 1 I IEEE 1149.1 test port data in TMS 1 I IEEE 1149.1 test port mode select TRST 1 I IEEE 1149.1 test port reset EMU0 1 I/O 5-VDC supply pins 5-VDC supply pins 5-VDC supply pins Substrate pin ( tie to ground) EMULATION ( 7 PINS) EMU1 1 I/O † I = input, O = output, Z = high impedance 6 IEEE 1149.1 test port data out Emulation pin 0 Emulation pin 1 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 GF Package Pin Assignments — Alphabetical Listing PIN PIN PIN PIN NAME NO. NAME NO. NAME NO. NAME A0 D32 C0D6 AN7 C5D4 AM30 A1 B32 C0D7 AK8 C5D5 AP32 A2 D30 C1D0 AL7 C5D6 AM32 A3 C29 C1D1 AP8 C5D7 AL31 A4 B30 C1D2 AM8 CACK0 A5 F28 C1D3 AK12 A6 F24 C1D4 AK10 A7 E29 C1D5 A8 C27 C1D6 A9 D28 A10 A11 PIN NO. NAME CVSS E35 D31 F32 CVSS AR25 DE AA31 CVSS AE1 DVDD AR11 CVSS AR13 DVDD AR29 AN11 CVSS A19 DVDD A13 CACK1 AN13 CVSS R35 DVDD A7 CACK2 AM14 CVSS AL1 DVDD A17 AN9 CACK3 AM16 D0 U33 DVDD L35 AL9 CACK4 AK32 D1 V32 DVDD AR23 C1D7 AP10 CACK5 AJ31 D2 T34 DVDD A29 B28 C2D0 AM18 CE0 AA33 D3 U31 DVDD L1 F26 C2D1 AN19 CE1 V34 D4 R33 DVDD AC1 A12 C25 C2D2 AL19 CRDY0 AP12 D5 P34 DVDD AR17 A13 E27 C2D3 AP20 CRDY1 AP14 D6 T32 DVDD A23 A14 B26 C2D4 AM20 CRDY2 AL15 D7 N33 DVDD AJ1 A15 D26 C2D5 AN21 CRDY3 AL17 D8 R31 DVSS AJ35 A16 C23 C2D6 AL21 CRDY4 AH30 D9 M34 DVSS A21 A17 B24 C2D7 AP22 CRDY5 AH32 D10 P32 DVSS A25 A18 E25 C3D0 AM22 CREQ0 AM10 D11 L33 DVSS G35 A19 C21 C3D1 AN23 CREQ1 AM12 D12 N31 DVSS A11 A20 D24 C3D2 AL23 CREQ2 AN15 D13 K34 DVSS AG1 A21 B22 C3D3 AP24 CREQ3 AN17 D14 M32 DVSS AM2 A22 E23 C3D4 AM24 CREQ4 AN33 D15 J33 DVSS R1 A23 C19 C3D5 AN25 CREQ5 AL33 D16 L31 DVSS AR21 A24 D22 C3D6 AL25 CSTRB0 AL11 D17 M30 DVSS AR15 A25 B20 C3D7 AP26 CSTRB1 AL13 D18 K32 DVSS A15 A26 E21 C4D0 AN27 CSTRB2 AP16 D19 H34 DVSS AR27 A27 B18 C4D1 AM26 CSTRB3 AP18 D20 J31 DVSS G1 A28 C17 C4D2 AK24 CSTRB4 AM34 D21 G33 DVSS N35 A29 D20 C4D3 AL27 CSTRB5 AK34 D22 K30 DVSS AR9 A30 B16 C4D4 AP28 CVSS AR19 D23 F34 EMU0 AA35 AE AG31 C4D5 AK26 CVSS AR7 D24 H32 EMU1 AD34 C0D0 AP4 C4D6 AN29 CVSS N1 D25 E33 GADVDD B2 C0D1 AL5 C4D7 AM28 CVSS AL35 D26 D34 GADVDD AR1 C0D2 AN5 C5D0 AL29 CVSS A27 D27 G31 GADVDD U35 C0D3 AM4 C5D1 AP30 CVSS A9 D28 C33 GDDVDD V2 C0D4 AP6 C5D2 AK28 CVSS E1 D29 H30 GDDVDD A35 C0D5 AM6 C5D3 AN31 CVSS J35 D30 E31 GDDVDD A1 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 NO. 7 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 GF Package Pin Assignments — Alphabetical Listing (Continued) PIN 8 PIN PIN PIN NAME NO. NAME NO. NAME NO. NAME NO. H1 AC3 LA25 R5 LD26 B4 STAT0 AD32 H3 AC5 LA26 T2 LD27 F8 STAT1 AE33 IACK W3 LA27 U3 LD28 D6 STAT2 AF34 IIOF0 AN3 LA28 T4 LD29 C3 STAT3 AE31 IIOF1 AL3 LA29 V4 LD30 E5 STRB0 AD30 IIOF2 AH6 LA30 U5 LD31 F6 STRB1 AC33 IIOF3 AK2 B34 LDDVDD LDDVDD AR35 SUBS C31 IVSS IVSS LADVDD LADVDD AP2 TCK Y34 AR31 U1 TCLK0 AE3 AD4 TCLK1 AD2 AR5 AB2 IVSS IVSS AG35 LADVDD LAE AP34 AB4 LDDVDD LDE A31 LCE0 AG5 LLOCK AA5 TDO AB34 IVSS IVSS J1 LCE1 AF2 LOCK W33 TDI AC35 A5 LD0 E19 LPAGE0 AH2 TMS W35 LA0 D2 LD1 C15 LPAGE1 AG3 TRST AE35 LA1 D4 LD2 D18 LRDY0 AF6 AN1 LA2 E3 LD3 B14 LRDY1 AE5 VDDL VDDL LA3 F4 LD4 E17 LR/W0 AH4 LA4 H6 LD5 D16 LR/W1 AF4 LA5 F2 LD6 C13 LSTAT0 AA3 LA6 G5 LD7 E15 LSTAT1 Y4 LA7 G3 LD8 B12 LSTAT2 Y2 H4 LD9 D14 LSTAT3 W5 VSSL VSSL AR33 LA8 LA9 H2 LD10 C11 LSTRB0 AJ3 X1 W1 X2 / CLKIN AA1 LA10 K6 LD11 E13 LSTRB1 AD6 LA11 M6 LD12 B10 NMI AJ5 LA12 J5 LD13 D12 PAGE0 AG33 LA13 J3 LD14 C9 PAGE1 AB32 LA14 K4 LD15 E11 RDY0 Y32 LA15 K2 LD16 F12 RDY1 W31 LA16 L3 LD17 D10 RESETLOC0 AF30 LA17 L5 LD18 B8 RESETLOC1 AH34 LA18 M2 LD19 E9 RESET AJ33 LA19 M4 LD20 C7 ROMEN AK4 LA20 N3 LD21 F10 R / W0 AF32 LA21 N5 LD22 B6 R / W1 AC31 LA22 P2 LD23 D8 LA23 P4 LD24 C5 LA24 R3 LD25 E7 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 VDDL VDDL VSSL VSSL AN35 C35 C1 A3 AR3 A33 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 GF Package Pin Assignments — Numerical Listing PIN PIN PIN PIN NO. NAME NO. NAME NO. NAME NO. NAME A1 GDDVDD AD30 STRB0 AK24 C4D2 AM30 C5D4 A3 VSSL IVSS AD32 STAT0 AK26 C4D5 AM32 C5D6 AD34 EMU1 AK28 C5D2 AM34 CSTRB4 DVDD CVSS AE1 CVSS AK32 CACK4 AN1 AE3 TCLK0 AK34 CSTRB5 AN3 VDDL IIOF0 A5 A7 A9 A11 A13 A15 A17 A19 A21 A23 A25 DVSS DVDD DVSS AE5 LRDY1 AL1 CVSS AN5 C0D2 AE31 STAT3 AL3 IIOF1 AN7 C0D6 AE33 STAT1 AL5 C0D1 AN9 C1D5 DVDD CVSS AE35 TRST AL7 C1D0 AN11 CACK0 AF2 LCE1 AL9 C1D6 AN13 CACK1 DVSS DVDD DVSS AF4 LR / W1 AL11 CSTRB0 AN15 CREQ2 AF6 LRDY0 AL13 CSTRB1 AN17 CREQ3 AF30 RESETLOC0 AL15 CRDY2 AN19 C2D1 CVSS DVDD AF32 R/W0 AL17 CRDY3 AN21 C2D5 AF34 STAT2 AL19 C2D2 AN23 C3D1 AG1 DVSS LPAGE1 AL21 C2D6 AN25 C3D5 AG3 AL23 C3D2 AN27 C4D0 A35 IVSS VSSL GDDVDD AG5 LCE0 AL25 C3D6 AN29 C4D6 AA1 X2 / CLKIN AG31 AE AL27 C4D3 AN31 C5D3 AA3 LSTAT0 AG33 PAGE0 AL29 C5D0 AN33 CREQ4 A27 A29 A31 A33 AA5 LLOCK AG35 C5D7 AN35 DE AH2 IVSS LPAGE0 AL31 AA31 AL33 CREQ5 AP2 AA33 CE0 AH4 LR/W0 AL35 CVSS AP4 VDDL LDDVDD C0D0 AA35 EMU0 AH6 IIOF2 AM2 DVSS AP6 C0D4 AB2 AH30 CRDY4 AM4 C0D3 AP8 C1D1 AB4 LADVDD LAE AH32 CRDY5 AM6 C0D5 AP10 C1D7 AB32 PAGE1 AH34 RESETLOC1 AM8 C1D2 AP12 CRDY0 AB34 TDO AJ1 DVDD AM10 CREQ0 AP14 CRDY1 AC1 DVDD H1 AJ3 LSTRB0 AM12 CREQ1 AP16 CSTRB2 AJ5 NMI AM14 CACK2 AP18 CSTRB3 AC3 AC5 H3 AJ31 CACK5 AM16 CACK3 AP20 C2D3 AC31 R/W1 AJ33 RESET AM18 C2D0 AP22 C2D7 AC33 STRB1 AJ35 DVSS AM20 C2D4 AP24 C3D3 AC35 TDI AK2 IIOF3 AM22 C3D0 AP26 C3D7 AD2 TCLK1 AK4 ROMEN AM24 C3D4 AP28 C4D4 AD4 LDE AK8 C0D7 AM26 C4D1 AP30 C5D1 AD6 LSTRB1 AK10 C1D4 AM28 C4D7 AP32 C5D5 AK12 C1D3 AP34 LADVDD POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 9 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 GF Package Pin Assignments — Numerical Listing (Continued) PIN PIN PIN PIN NAME NO. NAME NO. NAME NO. NAME NO. NAME AR1 GADVDD C1 CVSS H2 LA9 P2 LA22 C3 E3 LA2 H4 LA8 P4 LA23 AR5 VSSL IVSS VDDL LD29 E1 AR3 C5 LD24 E5 LD30 H6 LA4 P32 D10 AR7 CVSS C7 LD20 E7 LD25 H30 D29 P34 D5 AR9 DVSS C9 LD14 E9 LD19 H32 D24 R1 DVSS AR11 DVDD C11 LD10 E11 LD15 H34 D19 R3 LA24 AR13 CVSS C13 LD6 E13 LD11 J1 R5 LA25 AR15 C15 LD1 E15 LD7 J3 R31 D8 AR17 DVSS DVDD IVSS LA13 C17 A28 E17 LD4 J5 LA12 R33 D4 AR19 CVSS C19 A23 E19 LD0 J31 D20 R35 CVSS AR21 DVSS DVDD C21 A19 E21 A26 J33 D15 T2 LA26 AR23 C23 A16 E23 A22 J35 CVSS T4 LA28 AR25 CVSS C25 A12 E25 A18 K2 LA15 T32 D6 AR27 DVSS C27 A8 E27 A13 K4 LA14 T34 D2 AR29 DVDD C29 A3 E29 A7 K6 LA10 U1 AR31 C31 SUBS E31 D30 K30 D22 U3 C33 D28 E33 D25 K32 D18 U5 LA30 AR35 IVSS VSSL LDDVDD LDDVDD LA27 C35 E35 CVSS K34 D13 U31 D3 B2 GADVDD D2 VDDL LA0 F2 LA5 L1 DVDD U33 D0 B4 LD26 D4 LA1 F4 LA3 L3 LA16 U35 GADVDD B6 LD22 D6 LD28 F6 LD31 L5 LA17 V2 GDDVDD B8 LD18 D8 LD23 F8 LD27 L31 D16 V4 LA29 B10 LD12 D10 LD17 F10 LD21 L33 D11 V32 D1 B12 LD8 D12 LD13 F12 LD16 L35 DVDD V34 CE1 B14 LD3 D14 LD9 F24 A6 M2 LA18 W1 X1 B16 A30 D16 LD5 F26 A11 M4 LA19 W3 IACK B18 A27 D18 LD2 F28 A5 M6 LA11 W5 LSTAT3 B20 A25 D20 A29 F32 D31 M30 D17 W31 RDY1 B22 A21 D22 A24 F34 D23 M32 D14 W33 LOCK B24 A17 D24 A20 G1 DVSS M34 D9 W35 TMS B26 A14 D26 A15 G3 LA7 N1 CVSS Y2 LSTAT2 B28 A10 D28 A9 G5 LA6 N3 LA20 Y4 LSTAT1 B30 A4 D30 A2 G31 D27 N5 LA21 Y32 RDY0 B32 A1 D32 A0 G33 D21 N31 D12 Y34 TCK B34 LADVDD D34 D26 G35 DVSS N33 D7 N35 DVSS AR33 10 PIN NO. POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 memory map Figure 1 shows the memory map for the ’320C40. Refer to the TMS320C4x User’s Guide (literature number SPRU063B) for a detailed description of this memory mapping. 00000 0000h Structure Depends Upon ROMEN Bit 1M Accessible Local Bus (External) 00000 0FFFh 00000 1000h Boot-Loader ROM (Internal) Reserved Peripherals (Internal) 0000F FFFFh 00010 0000h Peripherals (Internal) 00010 00FFh 00010 0100h 1M Reserved Reserved 0001F FFFFh 00020 0000h Reserved Reserved 2G 1M 1K RAM BLK 0 (Internal) 1K RAM BLK 1 (Internal) 0002F F7FFh 0002F F800h 0002F FBFFh 0002F FC00h 1K RAM BLK 0 (Internal) 1K RAM BLK 1 (Internal) 0002F FFFFh 00030 0000h 2G–3M Structure Identical Local Bus (External) Local Bus (External) 07FFF FFFFh 08000 0000h Global Bus (External) Global Bus (External) 2G 0FFFF FFFFh (a) Internal ROM Disabled (ROMEN = 0) Microprocessor Mode (b) Internal ROM Enabled (ROMEN = 1) Microcomputer Mode Figure 1. Memory Map for ’320C40 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 11 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 description The ’320C40 digital signal processors ( DSPs) are 32-bit, floating-point processors manufactured in 0.72-µm, double-level metal CMOS technology. The ’320C40 is a part of the fourth generation of DSPs from Texas Instruments and is designed primarily for parallel processing. operation The ’320C40 has six on-chip communication ports for processor-to-processor communication with no external hardware and simple communication software. This allows connectivity to other ’C4x processors with no external-glue logic. The communication ports remove input / output bottlenecks, and the independent smart DMA coprocessor is able to handle the CPU input / output burden. central processing unit The ’320C40 CPU is configured for high-speed internal parallelism for the highest sustained performance. The key features of the CPU are: D D D D D Eight operations/cycle: – 40/32-bit floating-point / integer multiply – 40/32-bit floating-point / integer ALU operation – Two data accesses – Two address register updates IEEE floating-point conversion Divide and square-root support ’C3x assembly language compatibility Byte and halfword accessibility DMA coprocessor The DMA coprocessor allows concurrent I/O and CPU processing for the highest sustained CPU performance. The key features of the DMA processor are: D D D D Link pointers allow DMA channels to auto-initialize without CPU intervention. Parallel CPU operation and DMA transfers Six DMA channels support memory-to-memory data transfers. Split-mode operation doubles the available DMA channel to 12 when data transfers to and from a communication port are required. communication ports The ’320C40 is the first DSP with on-chip communication ports for processor-to-processor communication with no external hardware and simple communication software. The features of the communication ports are: D D D D D 12 Direct interprocessor communication and processor I / O Six communication ports for direct interprocessor communication and processor I/O 20M-bytes/s bidirectional interface on each communication port for high-speed multiprocessor interface Separate input and output 8-word-deep FIFO buffers for processor-to-processor communication and I/O Automatic arbitration and handshaking for direct processor-to-processor connection POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 TMS320C40 DIGITAL SIGNAL PROCESSOR SPRS038 – JANUARY 1996 communication-port software reset (’C40 silicon revision ≥ 5.0) The input and output FIFO levels for a communication port can be flushed by writing at least two back-to-back values to its communication-port-software reset address as specified in Table 1. This feature is not present in ’C40 silicon revision