SX-1 Appendix

APPENDIX A: CONNECTOR PINOUTS
Parallel Connector:
Pin:Name:Description:
1ISTROBEStrobe
2D0Data bit 0 (LSB)
3D1Data bit 1
4D2Data bit 2
5D3Data bit 3
6D4Data bit 4
7D5Data bit 5
8D6Data bit 6
9D7Data bit 7
10/ACKAcknowledge
11BUSYBusy
12POUTPaperOut
13SELSelect
14+5V5V Power
15NCNo Connect
16/RESETPrinter Reset
17-25GNDSignal Ground
Pins 17-25 are signal grounds. Do not connect them direct to a shield ground. Pin 14 provides +5V power. Conned this pin only if power is required by the external device.
Floppy Disk Connector:
Pin:Name:Description:
1/RDYDisk Ready
2/DKRDDisk Read Data
3-7GNDGround
8/MTRXDDisk Motor Control
9ISELISelect Drive 1
10IDRESDisk Reset
11/CHNGDisk Changed
12+5V+5V Power
13/SIDEDisk Side Select
14/WPROWrite Protected
15/TKOTrack 0 Detected
16/DKWEDisk Write Enable
17/DKWDDisk Write Data
18/STEPStep Disk Heads
19DIRBSelect Head Direction
20/SEL2Select Drive 2
21/SEL0Select Drive 0
22/INDEXDisk Index Pulse
23+12V+12V Power
External IDE Connector:
Pin:Name:Description:
1/IDE-RESETDrive Reset
2D0Data bit 0
3D2Data bit 2
4D4Data bit 4
5D6Data bit 6
6GNDGround
7D8Data bit 8
8D10Data bit 10
9D12Data bit 12
10D14Data bit 14
11-17GNDGround
18-19+5V5V Power
20GNDGround
21D1Data bit 1
22D3Data bit 3
23D5Data bit 5
24D7Data bit 7
25GNDGround
26D9Data bit 9
27D11Data bit 11
28D13Data bit 13
29D15Data bit 15
30/IOWI/O Write
M/IORI/O Read
32IDE-IRQInterrupt Request
33IDE-A2Address bit 2
34IDE-A1Address bit 1
35IDE-A0Address bit 0
36/BICS1Chip Select 1
37/BICS0Chip Select 0
Serial Port:
Pin:Name:Description:
1DCDCarrier Detect
2RXDReceive Data
3TXDTransmit Data
4DTRData Terminal Ready
5GNDGround
6DSRData Set Ready
7RTSRequest To Send
8CTSClear To Send
9RIRing indicate
RGB Video Connector:
Pin:Name:Description:
1/XCLKExternal Clock
2/XCLKENExternal Clock Enable
3REDAnalog Red
4GREENAnalog Green
5BLUEAnalog Blue
6DIDigital Intensity
7DBDigital Blue
8DGDigital Green
9DRDigital Red
10/CSYNCComposite Sync
11/HSYNCHorizontal Sync
12/VSYNCVertical Sync
13GNDRTNReturn for /XCLKEN
14/ZDZero Detect
15/CIClock Out
16-20GNDGround
21NCNo Connect (-12 volts on A1200)
22+12V+12V Power
23+5V+5V Power
Pins 21-23 provide power. Connect these pins only if the device requires it.
AT Keyboard Port:
Pin:Name:Description:
1KCLKKeyboard Clock
2KDATKeyboard Data
3NCNo Connect
4GNDGround
5+5V+5 volts power
Audio Connector:
Pin:Name:Description:
1AUDIO_12VAudio Voltage
2LEFT_EXTLeft Signal Input
3RIGHT_EXTRight Signal Input
4/EXT_AUDIO
5AUDIO_GNDAudio Ground
6GNDGround
APPENDIX B: QUICK REFERENCE JUMPER SETTINGS
"0N" indicates that a jumper block is connecting two pins. "OFF" means that the jumper block is either detached completely, or is hanging off only one pin of the pair.
Jumper Function
1 Controls the number of memory banks contained on the SIMM
ON=2 Banks of Memory (a 2 or 8 Megabyte SIMM)
OFF=1 Bank of Memory (a 1 or 4 Megabyte SIMM)
Default position: OFF
2 Controls the size of the memory banks contained on the SIMM
ON=4 or 8 Megabyte SIMM
OFF=1 or 2 Megabyte SIMM
Default position: OFF
3 Disables Memory Configuration
ON=Defeat Autoconfiguration or No Ram Installed
OFF=Normal Autoconfiguration
Default position: ON
4 Power On Delay
ON=Adds additional 10 seconds for hard drive to Spin up on initial cold starts
OFF=Normal boot time
Default position: OFF
5 Right Alt control for AT keyboards ON = Keyboard has two ALT keys
OFF=Keyboard has no right ALT key so function is mapped to right CTRL key
Default position: ON