Motorola MVME712A/D3, MVME712-12, MVME712AM, MVME712B Connector J15 Interconnect Signals MVME712x

Interconnect Signals

Connector J15 Interconnect Signals (MVME712x)

Connector J15 is the printer port on the MVME712x (MVME712-12, MVME712-13, MVME712A, and MVME712AM). Each pin connection, signal mnemonic, and signal characteristic for the connector is listed in Table 3-14.

Table 3-14. Connector J15 Interconnect Signals (MVME712x)

Pin	Signal	Signal Name and Description
Number	Mnemonic
1	PRSTB*	DATA STROBE - an active low output
		pulse used to clock data from the system
		to the printer.
2	PRD0	DATA (bit 0)
3	PRD1	DATA (bit 1)
4	PRD2	DATA (bit 2)
5	PRD3	DATA (bit 3)
6	PRD4	DATA (bit 4)
7	PRD5	DATA (bit 5)
8	PRD6	DATA (bit 6)
9	PRD7	DATA (bit 7)
10	PRACK*	DATA ACKNOWLEDGE - a low level
		input pulse indicating that the next
		character may be sent.
11	PRBSY	BUSY - an input signal indicating that the
		printer cannot receive data.
12	PRPE	PAPER EMPTY - out of paper.
13	PRSEL	SELECTED - an input signal indicating
		that the printer is selected.
14		Not used.
15	PRFAULT*	FAULT - an input signal that indicates a
		printer fault condition.
16	INPRIME*	INPUT PRIME - an output signal that
		clears the printer buffer and initializes the
		logic.
17		Not used.
18-25	GND	GROUND

3

MVME712A/D3 3-21