Vmebus Slave Write Post And Snoop Control Register 1 - Motorola MVME162FX Programmer's Reference Manual

A32
USR
SUP

VMEbus Slave Write Post and Snoop Control Register 1

ADR/SIZ
BIT 15
NAME
OPER
RESET
This register is the slave write post and snoop control register for
the first VMEbus to local bus map decoder.
WP1
SNP1
When this bit is high, the second map decoder
responds to VMEbus A32 (extended) access cycles.
When this bit is low, the second map decoder does
not respond to VMEbus A32 access cycles.
When this bit is high, the second map decoder
responds to VMEbus user (non-privileged) access
cycles. When this bit is low, the second map decoder
does not responded to VMEbus user access cycles.
When this bit is high, the second map decoder
responds to VMEbus supervisory access cycles.
When this bit is low, the second map decoder does
not respond to VMEbus supervisory access cycles.
$FFF40010 (8 bits [4 used] of 32)
14 13 12
When this bit is high, write posting is enabled for the
address range defined by the first VMEbus slave
map decoder. When this bit is low, write posting is
disabled for the address range defined by the first
VMEbus slave map decoder.
These bits control the snoop enable lines to the local
bus for the address range defined by the first
VMEbus slave map decoder. The snooping
functions are:
0 Snoop inhibited
LCSR Programming Model
11 10 9
ADDER1 SNP1
R/W R/W
0 PS 0 PS
2
8
WP1
R/W
0 PS
2-37