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1300 Henley Court Pullman, WA 99163 509.334.6306 www.digilentinc.com PmodSF2™ Reference Manual Revised April 12, 2016 This manual applies to the PmodSF2 rev. A Overview The Digilent PmodSF2 provides 16MB of serial phase change memory (PCM). Features include:        16MB of serial phase change memory (PCM) 128Mbit, quad/dual/single serial interface More than 1,000,000 write cycles 8 Super Page programming regions for a total of 128 sectors Small PCB size for flexible designs 1.0“ × 0.8” (2.54 cm × 2.0 cm) 12-pin Pmod port with SPI interface Library and example code available in resource center The PmodSF2. 1 Functional Description The PmodSF2 utilizes Micron® P5Q PCM to provide easily accessed non-volatile memory to system boards. As PCM supports bit-alterable page writes, it lasts much longer than flash memory and can support over 1,000,000 page write cycles per sector. 2 Interfacing with the Pmod The PmodSF2 communicates with the host board via the SPI protocol. By bringing the Chip Select line low, users may issue a single byte instruction code to memory chip. A table of available commands taken from the P5Q datasheet is provided below. DOC#: 502-181 Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 1 of 3 PmodSF2™ Reference Manual One-byte Instruction Code Number of Address Bytes Number of Dummy Bytes 0x06 0 0 0 Write Disable 0x04 0 0 0 RDID Read Identification 0x9F 0x9E 0 0 0 0 1 to 3 1 to 3 RDSR Read Status Register 0x05 0 0 1 to ∞ WRSR Write Status Register 0x01 0 0 1 READ Read Data Bytes 0x03 3 0 1 to ∞ FAST_READ Read Data Bytes at Higher Speed 0x0B 3 1 1 to ∞ 0x3B 3 1 1 to ∞ 0x6B 3 1 1 to ∞ 0x02 3 0 1 to 64 Page Program (Bitalterable write) 0x22 3 0 1 to 64 Page Program (On all 1s) 0xD1 3 0 1 to 64 Dual Input Fast Program (Legacy) 0xA2 3 0 1 to 64 Dual Input Fast Program (Bitalterable write) 0xD3 3 0 1 to 64 Dual Input Fast Program (On all 1s) 0xD5 3 0 1 to 64 Quad Input Fast Program (Legacy) 0x32 3 0 1 to 64 Quad Input Fast Program (Bitalterable write) 0xD7 3 0 1 to 64 Quad Input Fast Program (On all 1's) 0xD9 3 0 1 to 64 SE Sector Erase 0xD8 3 0 0 BE Bulk Erase 0xC7 0 0 0 DP Deep Power-down 0xB9 0 0 0 Instruction Description WREN Write Enable WRDI DOFR QOFR PP DIFP QIFP Dual Output Fast Read Quad Output Fast Read Page Program (Legacy) Number of Data Bytes Table 1. Available commands from the P5Q datasheet. The memory address bits range from 0x000000 to 0xFFFFFF with each individual page consisting of 64 bytes a piece. Users that wish to simply use the memory module without concerning themselves with the dual/quad input output communication may use the same library that is available for the PmodSF2 without any issue. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 2 of 3 PmodSF2™ Reference Manual Pin Signal Description 1 ~CS Chip Select 2 MOSI/DQ0 Master-Out-Slave-In 3 MISO/DQ1 Master-In-Slave-Out 4 SCK Serial Clock 5 GND Power Supply Ground 6 VCC Power Supply (3.3V) 7 NC Not Connected 8 W/DQ2 Write Protect 9 HLD/DQ3 Hold 10 NC Not Connected 11 GND Power Supply Ground 12 VCC Power Supply (3.3V) Table 2. Pinout description table. Any external power applied to the PmodSF2 must be within 2.7V and 3.6V; it is strongly recommended that Pmod is operated at 3.3V. 3 Physical Dimensions The pins on the pin header are spaced 100 mil apart. The PCB is 1 inch long on the sides parallel to the pins on the pin header and 0.8 inches long on the sides perpendicular to the pin header. Copyright Digilent, Inc. All rights reserved. Other product and company names mentioned may be trademarks of their respective owners. Page 3 of 3