Signal DescriptionsMCF5272 ColdFire ® Integrated Microprocessor User’s Manual, Rev. 3Freescale Semiconductor 19-11Table 19-2 presents signal names, functions, and descriptions sorted by pin numbers.Table 19-2. Signal Name and Description by Pin Number (Sheet 1 of 8)MapBGAPinPin FunctionsName Description I/O0 (Reset) 1 2 3A1 DDATA3 — — — DDATA3 Debug data 3 OA2 DDATA1 — — — DDATA1 Debug data 1 OA3 TEA — — — TEA BDM debug transfer erroracknowledgeIA4 TDI DSI — — TDI/DSI JTAG test data in/BDMdata inIA5 D16 D0 — — D16/D0 D16/D0 I/OA6 D18 D2 — — D18/D2 D18/D2 I/OA7 D21 D5 — — D21/D5 D21/D5 I/OA8 D22 D6 — — D22/D6 D22/D6 I/OA9 BS0 — — — BS0 Byte strobe 0 OA10 RAS0 — — — RAS0 SDRAM row select strobe OA11 A13 SDA12 SDA11 — A13/SDA12/SDA11 A13/SDRAM-16bitA12/SDRAM-32bit A11OA12 A2 SDA1 SDA0 — A2/SDA1/SDA0 A2/SDRAM-16bitA1/SDRAM-32bit A0OA13 A3 SDA2 SDA1 — A3/SDA2/SDA1 A3/SDRAM-16bitA2/SDRAM-32bit A1OA14 A4 SDA3 SDA2 — A4/SDA3/SDA2 A4/SDRAM-16bitA3/SDRAM-32bit A2OB1 PST0 — — — PST0 Internal processor status0OB2 DDATA2 — — — DDATA2 Debug data 2 OB3 MTMOD — — — MTMOD 0 selects JTAG mode, 1selects BDM modeIB4 TMS BKPT — — TMS/BKPT JTAG test mode/BDMselect breakpoint inputIB5 A20 — — — A20 A20 OB6 D17 D1 — — D17/D1 D17/D1 I/OB7 D20 D4 — — D20/D4 D20/D4 I/OB8 D23 D7 — — D23/D7 D23/D7 I/OB9 SDWE — — — SDWE SDRAM write enable OB10 SDCS/CS7— — — SDCS / CS7 SDRAM chip select/CS7 OB11 A12 SDA11 — — A12/SDA11 A12/SDRAM-16bit A11 O
