TS-7250-V3 PC104 Header
From embeddedTS Manuals
The PC104 connector consists of four rows of pins labelled A-D. The PC104 standard implements an ISA bus over these headers, but we also include the ability for almost all of the pins to be used as DIO.
Pin | Name | GPIO | Pin | Name | GPIO | Pin | Name | GPIO | Pin | Name | GPIO | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
B32 | GND | N/A | A32 | GND | N/A | |||||||||
B31 | GND | N/A | A31 | ISA_ADD_00 | 41 | |||||||||
B30 | ISA_14_3_MHZ | 5 | A30 | ISA_ADD_01 | 42 | |||||||||
B29 | 5V | N/A | A29 | ISA_ADD_02 | 43 | |||||||||
B28 | ISA_BALE | 24 | A28 | ISA_ADD_03 | 44 | C19 | GND | N/A | D19 | GND | N/A | |||
B27 | ISA_TC | 23 | A27 | ISA_ADD_04 | 45 | C18 | ISA_DAT_15 | 40 | D18 | GND | N/A | |||
B26 | ISA_DACK2 | 22 | A26 | ISA_ADD_05 | 46 | C17 | ISA_DAT_14 | 39 | D17 | Unused | N/A | |||
B25 | ISA_IRQ3 | 20 | A25 | ISA_ADD_06 | 47 | C16 | ISA_DAT_13 | 38 | D16 | +5V | N/A | |||
B24 | GND | N/A | A24 | ISA_ADD_07 | 48 | C15 | ISA_DAT_12 | 37 | D15 | ISA_DRQ7 | 101 | |||
B23 | ISA_IRQ5 | 14 | A23 | ISA_ADD_08 | 49 | C14 | ISA_DAT_11 | 36 | D14 | ISA_DACK7 | 100 | |||
B22 | ISA_IRQ6 | 15 | A22 | ISA_ADD_09 | 50 | C13 | ISA_DAT_10 | 35 | D13 | ISA_DRQ6 | 99 | |||
B21 | ISA_IRQ7 | 16 | A21 | ISA_ADD_10 | 51 | C12 | ISA_DAT_09 | 34 | D12 | ISA_DACK6 | 98 | |||
B20 | ISA_BCLK | 21 | A20 | ISA_ADD_11 | 52 | C11 | ISA_DAT_08 | 33 | D11 | ISA_DRQ5 | 97 | |||
B19 | ISA_REFRESH | 8 | A19 | ISA_ADD_12 | 53 | C10 | Unused | N/A | D10 | ISA_DACK5 | 96 | |||
B18 | ISA_DRQ1 | 19 | A18 | ISA_ADD_13 | 54 | C09 | Unused | N/A | D09 | ISA_DRQ0 | 95 | |||
B17 | ISA_DACK1 | 18 | A17 | ISA_ADD_14 | 55 | C08 | Unused | N/A | D08 | ISA_DACK0 | 94 | |||
B16 | ISA_DRQ3 | 11 | A16 | ISA_ADD_15 | 56 | C07 | Unused | N/A | D07 | ISA_IRQ14 | 93 | |||
B15 | ISA_DACK3 | 13 | A15 | ISA_ADD_16 | 57 | C06 | Unused | N/A | D06 | ISA_IRQ15 | 92 | |||
B14 | ISA_IOR | 0 | A14 | ISA_ADD_17 | 58 | C05 | N/A | Unused | D05 | ISA_IRQ12 | 91 | |||
B13 | ISA_IOW | 1 | A13 | ISA_ADD_18 | 59 | C04 | Unused | N/A | D04 | ISA_IRQ11 | 90 | |||
B12 | ISA_MEMR | 3 | A12 | ISA_ADD_19 | 60 | C03 | Unused | N/A | D03 | ISA_IRQ10 | 89 | |||
B11 | ISA_MEMW | 2 | A11 | ISA_AEN | 7 | C02 | Unused | N/A | D02 | ISA_IO16 | 88 | |||
B10 | GND | N/A | A10 | ISA_IORDY | 10 | C01 | Unused | N/A | D01 | ISA_MEM16 | 87 | |||
B09 | Unused | N/A | A09 | ISA_DAT_00 | 25 | C00 | GND | N/A | D00 | GND | N/A | |||
B08 | ISA_ENDX | 6 | A08 | ISA_DAT_01 | 26 | |||||||||
B07 | Unused | N/A | A07 | ISA_DAT_03 | 28 | |||||||||
B06 | ISA_DRQ2 | 12 | A06 | ISA_DAT_04 | 29 | |||||||||
B05 | 3.3V [1] | N/A | A05 | ISA_DAT_05 | 30 | |||||||||
B04 | ISA_IRQ9 | 17 | A04 | ISA_DAT_02 | 27 | |||||||||
B03 | Unused | N/A | A03 | ISA_DAT_06 | 31 | |||||||||
B02 | ISA_RESET | 4 | A02 | ISA_DAT_07 | 32 | |||||||||
B01 | GND | N/A | A01 | ISA_IOCHK | 9 |
- ↑ The PC104 standard uses -5V here. If a third party device is used that might use this rail, FB17 should be removed.