Connector Pi Interconnect Signals - Motorola MVME135 User Manual

I
SUPPORT INFORMATION
TABLE
5-1.
CONNECTOR PI INTERCONNECT SIGNALS
(cant.)
Pin
Number
B8
B9
Bl~
B11
B12
B13
Signal
Mnemonic
BG2IN*
BG20UT*
BG3IN*
BG30UT*
BR"*
BRl*
B14 BR2*
B15 BR3*
B16-B19
AM~-AM3
B2~ GND
B21,B22 NC
B23 GND
Signal Name and Description
BUS GRANT 2
IN -
Same as BG"IN on pin B4.
BUS GRANT 2 OUT - Same as
BG~OUT
on pin B5.
BUS GRANT 3
IN -
Same as BG"IN on pin B4.
BUS GRANT 3 OUT - Same as BG"OUT on pin B5.
BUS REQUEST
(1
eve
1 ") -
One of four open -co
11
ector
driven signals that are generated by requesters.
These signals indicate that a data transfer bus
master in the daisy-chain requires access to the
bus.
BUS REQUEST (level 1) - Same as BR"* on pin B12.
BUS REQUEST (level 2) - Same as BR"* on pin B12.
BUS REQUEST
(1
eve
1
3) - Same as BR"* on pin B12.
ADDRESS MODIFIER (bits ~-3) - Same as AM4 on pin
A23.
GROUND
NOT CONNECTED
GROUND
824-83" IRQ7*-IRQl* INTERRUPT REQUEST (bits 7-1)- These signals are
generated by an interrupter and carry the
prioritized interrupt requests. Level 7 is the
highest priority and level 1 the lowest.
B31
B32
CI-C8
5-4
+5VSTDBY
+5V
D~8-D15
+5Vdc
STANDB~
- This
1
ine suppl ies +5 Vdc to
devices requiring battery backup.
+5 Vdc POWER - Used by system logic circuits.
DATA BUS (bits 8-15) - Eight of 16 three-state
bidirectional data lines that provide the data
path between the data transfer bus master and
slave.