user manual

Connectors
http://www.motorola.com/computer/literature 5-35
5
Parallel Port Connector (J20)
The parallel port (J20) uses a 25-pin, D-sub connector.
12 DDCDAT Display data channel data signal for DDC2 support
13 HSYNC Horizontal synchronization
14 VSYNC Vertical synchronization
15 DDCCLK Display data channel clock signal for DDC2 support
Table 5-18. Video Connector Pin Assignments (J16)
Pin
Signal
Mnemonic Signal Description
Table 5-19. Parallel Connector Pin Assignments (J20)
Pin Signal Mnemonic Signal Description
1 STROBE- Data at parallel port is valid
2 D0 Parallel data lines
3 D1 Parallel data line
4 D2 Parallel data line
5 D3 Parallel data line
6 D4 Parallel data line
7 D5 Parallel data line
8 D6 Parallel data line
9 D7 Parallel data line
10 ACK- Acknowledge data retrieval
11 BUSY Printer cannot accept more data
12 PE Printer out of paper
13 SELECT Set high when selected
14 AFD- Causes printer to add a line feed