Motorola MVME712A GND Ground DBP, Termpwr Terminator Power, GND Ground ATN, GND Ground BSY

3

Support Information

Table 3-6. Connector J3 Interconnect Signals (LCP2 Adapter) (Continued)

Pin	Signal	Signal Name and Description
Number	Mnemonic
10	DB04*	DATA bus (bit 4)
11	GND	GROUND
12	DB05*	DATA bus (bit 5)
13	GND	GROUND
14	DB06*	DATA bus (bit 6)
15	GND	GROUND
16	DB07*	DATA bus (bit 7) - most signiÞcant bit and the
		highest priority during the arbitration phase.
17	GND	GROUND
18	DBP*	DATA bus (parity) - data parity is odd. Use of
		parity is a system option. Parity is not valid
		during the arbitration phase.
19-24	GND	GROUND
25		Not used.
26	TERMPWR	TERMINATOR POWER
27-31	GND	GROUND
32	ATN*	ATTENTION - signal driven by the initiator.
		Indicates the attention condition.
33-35	GND	GROUND
36	BSY*	BUS BUSY - OR-tied signal that indicates that
		the bus is being used.
37	GND	GROUND
38	ACK*	ACKNOWLEDGE - signal driven by an initiator
		to indicate an acknowledgment for a REQ/ACK
		data transfer handshake.
39	GND	GROUND
40	RST*	RESET - OR-tied signal that indicates the RESET
		condition.
41	GND	GROUND
42	MSG*	MESSAGE - signal driven by the target during
		the message phase.
43	GND	GROUND
44	SEL*	SELECT - signal used by an initiator to select a
		target or by a target to reselect an initiator.
45	GND	GROUND

3-10 MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual