Local Bus Slave (Vmebus Master) Attribute Register 3 - Motorola MVME1X7P Programmer's Reference Manual

VMEchip2

Local Bus Slave (VMEbus Master) Attribute Register 3

2
ADR/SIZ
BIT
NAME
OPER
RESET
2-44
23 22 21
D16 WP
R/W R/W
0 PS 0 PS
This register is the attribute register for the third local-bus-to-VMEbus bus
map decoder.
AM These bits define the VMEbus address modifier codes that
the VMEbus master uses for the segment defined by map
decoder 3. Because the local-bus-to-VMEbus interface
does not support block transfers, the block transfer
address modifier codes should not be used.
WP When this bit is high, write posting is enabled to the
segment defined by map decoder 3. When this bit is low,
write posting is disabled to the segment defined by map
decoder 3.
D16 When this bit is high, D16 data transfers are performed to
the segment defined by map decoder 3. When this bit is
low, D32 data transfers are performed to the segment
defined by map decoder 3.
$FFF40028 (8 bits of 32)
20 19
AM
R/W
O PS
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18 17 16