User's Manual

Turbo PMAC PCI HRM
Connector Pinouts 41
BASE BOARD CONNECTOR PINOUTS
J1: Display Port Connector
J1 JDISP (14-Pin Connector)
Front View
Pin # Symbol Function Description Notes
1 Vdd Output +5V Power Power supply out
2 Vss Common PMAC Common
3 Rs Output Read Strobe TTL signal out
4 Vee Output Contrast Adjust. VEE 0 to +5 VDC *
5 E Output Display Enable High is enable
6 R/W Output Read or Write TTL signal out
7 DB1 Output Display Data1
8 DB0 Output Display Data0
9 DB3 Output Display Data3
10 DB2 Output Display Data2
11 DB5 Output Display Data5
12 DB4 Output Display Data4
13 DB7 Output Display Data7
14 DB6 Output Display Data6
The JDISP connector is used to drive the 2-line x 24-character (Acc-12), 2 x 40 (Acc-12A) LCD, or the 2
x 40 vacuum fluorescent (Acc 12C) display unit. The DISPLAY command may be used to send
messages and values to the display.
* Note: Controlled by potentiometer R1.
See Also:
Program Commands:
DISPLAY
Accessories: Acc-12, 12A, 12C, Acc-16D
Memory Map: Y:$0780 - $07D1