AM-100 bus
From HwB
Alpha Micro made a version of S-100 bus for 16-bit processor.
Contents |
Pinout
1 (Component side) 50 ============================== 100 (Solder side) 51
| Pin | Name | Type | Dir | Description |
|---|---|---|---|---|
| 1 | +8 V | Power | |
+8 Volts |
| 2 | +18 V | Power | |
+18 Volts |
| 3 | ---- | Fr panel | |
External Ready To Processor |
| 4 | /VI0 | Control | |
Vector Interrupt Line 0 |
| 5 | /VI1 | Control | |
Vector Interrupt Line 1 |
| 6 | /VI2 | Control | |
Vector Interrupt Line 2 |
| 7 | /VI3 | Control | |
Vector Interrupt Line 3 |
| 8 | /VI4 | Control | |
Vector Interrupt Line 4 |
| 9 | /VI5 | Control | |
Vector Interrupt Line 5 |
| 10 | /VI6 | Control | |
Vector Interrupt Line 6 |
| 11 | /VI7 | Control | |
Vector Interrupt Line 7 |
| 12 | ||||
| 13 | ||||
| 14 | ||||
| 15 | ||||
| 16 | ||||
| 17 | ||||
| 18 | ---- | |||
| 19 | ---- | |||
| 20 | ??? | |||
| 21 | --- | |||
| 22 | --- | |||
| 23 | --- | |||
| 24 | phi2 | Clock | |
Primary Processor Clock Line |
| 25 | /PSTVAL | ? | ? | |
| 26 | PHLDA | Control | |
Processor In Hold Condition |
| 27 | PWAIT | Control | |
Processor In Wait Condition |
| 28 | PINTE | Control | |
Processor Permits Interrupts When Active |
| 29 | A5 | Address | |
Address Line 5 |
| 30 | A4 | Address | |
Address Line 4 |
| 31 | A3 | Address | |
Address Line 3 |
| 32 | A15 | Address | |
Address Line 15 |
| 33 | A12 | Address | |
Address Line 12 |
| 34 | A9 | Address | |
Address Line 9 |
| 35 | DO1 | Data | |
Data Output Line 1 |
| 36 | DO0 | Data | |
Data Output Line 0 |
| 37 | A10 | Address | |
Address Line 10 |
| 38 | DO4 | Data | |
Data Output Line 4 |
| 39 | DO5 | Data | |
Data Output Line 5 |
| 40 | DO6 | Data | |
Data Output Line 6 |
| 41 | DI2 | Data | |
Data Input Line 2 |
| 42 | DI3 | Data | |
Data Input Line 3 |
| 43 | DI7 | Data | |
Data Input Line 7 |
| 44 | SM1 | State | |
Processor Instruction Fetch Signal |
| 45 | SOUT | State | |
Processor I/O Write Signal |
| 46 | SINP | State | |
Processor I/O Read Signal |
| 47 | SMEMR | State | |
Processor Memory Read Signal |
| 48 | ||||
| 49 | CLOC | Clock | |
2Mhz Clock Signal |
| 50 | GND | Power | |
Logical And Power Ground |
| 51 | +8V | Power | |
+8 Volts |
| 52 | -16V | Power | |
-18 Volts |
| 53 | ??? | |||
| 54 | ??? | |||
| 55 | ??? | |||
| 56 | /DMAGR7 | |||
| 57 | /DMAGR6 | |||
| 58 | /DMAGR5 | |||
| 59 | /DMAGR4 | |||
| 60 | /DMAGR3 | |||
| 61 | /DMAGR2 | |||
| 62 | /DMAGR1 | |||
| 63 | /DMAGR0 | |||
| 64 | /DMARCVD | |||
| 65 | --- | |||
| 66 | --- | |||
| 67 | ??? | |||
| 68 | MWRT | Ctrl/frp | |
Memory Write From Processor Or Front Panel |
| 69 | ??? | |||
| 70 | ??? | |||
| 71 | ??? | |||
| 72 | ??? | |||
| 73 | ??? | |||
| 74 | /DMAREQ | ? | DMA Request | |
| 75 | /PRESET | Control | |
Forces Processor To Reset State |
| 76 | ??? | |||
| 77 | /PWR | Control | |
Active When Processor Writes (I/O Or Memory) |
| 78 | PDBIN | Control | |
Active When Processor Reads (I/O Or Memory) |
| 79 | A0 | Address | |
Address Line 0 |
| 80 | A1 | Address | |
Address Line 1 |
| 81 | A2 | Address | |
Address Line 2 |
| 82 | A6 | Address | |
Address Line 6 |
| 83 | A7 | Address | |
Address Line 7 |
| 84 | A8 | Address | |
Address Line 8 |
| 85 | A13 | Address | |
Address Line 13 |
| 86 | A14 | Address | |
Address Line 14 |
| 87 | A11 | Address | |
Address Line 11 |
| 88 | DO2 | Data | |
Data Output Line 2 |
| 89 | DO3 | Data | |
Data Output Line 3 |
| 90 | DO7 | Data | |
Data Output Line 7 |
| 91 | DI4 | Data | |
Data Input Line 4 |
| 92 | DI5 | Data | |
Data Input Line 5 |
| 93 | DI6 | Data | |
Data Input Line 6 |
| 94 | DI1 | Data | |
Data Input Line 1 |
| 95 | DI0 | Data | |
Data Input Line 0 |
| 96 | SINTA | Control | |
Acknowledge Signal For Pint Request |
| 97 | /SWO | Control | |
Processor In Write Status |
| 98 | ??? | |||
| 99 | /POC | Ft panel | |
Power-On Clear Signal |
| 100 | GND | |
Power And Signal Ground |
Note: Direction is CPU/Frontpanel relative cards.
See also
Contributors
Sources
- List of Altair/IMSAI S100 signals by Herb Johnson
- S-100 and IEEE-696 Bus List by Herbert R. Johnson