Vmebus Slave Write Post And Snoop Control Register 2 - Motorola MVME162FX Programmer's Reference Manual

VMEbus Slave Write Post and Snoop Control Register 2

ADR/SIZ
BIT 31
NAME
OPER
RESET
This register is the slave write post and snoop control register for
the second VMEbus to local bus map decoder.
WP2
SNP2
ADDER2
$FFF40010 (8 bits [4 used] of 32)
30 29 28
When this bit is high, write posting is enabled for the
address range defined by the second VMEbus slave
map decoder. When this bit is low, write posting is
disabled for the address range defined by the second
VMEbus slave map decoder.
These bits control the snoop enable lines to the local
bus for the address range defined by the second
VMEbus slave map decoder. The snooping
functions are:
0 Snoop inhibited
1 Write - Sink data
Read - Supply dirty data and leave dirty
2 Write - Invalidate
Read - Supply dirty data and mark invalid
3 Snoop inhibited
When this bit is high, the adder is used for address
translation. When this bit is low, the adder is not
used for address translation.
LCSR Programming Model
27 26 25
ADDER2 SNP2
R/W R/W
0 PS 0 PS
2
24
WP2
R/W
0 PS
2-35