Motorola MVME1X7P - Manual (Page 122)

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VMEchip2
2
VMEbus Slave Write Post and Snoop Control Register 2
This register is the slave write post and snoop control register for the
second VMEbus-to-local-bus map decoder.
WP2 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.
SNP2 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 differ
according to processor type, as shown:
ADDER2 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.
ADR/SIZ $FFF40010 (8 bits [4 used] of 32)
BIT 31 30 29 28 27 26 25 24
NAME ADDER
2
SNP2 WP2
OPER R/W R/W R/W
RESET 0 PS 0 PS 0 PS
SNP2 Requested Snoop Operation
26 25 MC68040 MC68060
0 0 Snoop disabled Snoop enabled
0 1 Source dirty, sink byte/word/longword Snoop disabled
1 0 Source dirty, invalidate line Snoop enabled
1 1 Snoop disabled (Reserved) Snoop disabled