Vmebus Slave Address Modifier Select Register 2 - Motorola MVME162FX Programmer's Reference Manual

VMEchip2
VMEbus Slave Address Modifier Select Register 2
2
ADR/SIZ
BIT
NAME
OPER
RESET
2-36
23 22 21
SUP USR A32
R/W R/W R/W
0 PSL 0 PSL 0 PSL
This register is the address modifier select register for the second
VMEbus to local bus map decoder. There are three groups of
address modifier select bits: DAT, PGM, BLK and D64; A24 and
A32; and USR and SUP. At least one bit must be set from each group
to enable the map decoder.
DAT When this bit is high, the second map decoder
responds to VMEbus data access cycles. When this
bit is low, the second map decoder does not respond
to VMEbus data access cycles.
PGM When this bit is high, the second map decoder
responds to VMEbus program access cycles. When
this bit is low, the second map decoder does not
respond to VMEbus program access cycles.
BLK When this bit is high, the second map decoder
responds to VMEbus block access cycles. When this
bit is low, the second map decoder does not respond
to VMEbus block access cycles.
D64 When this bit is high, the second map decoder
responds to VMEbus D64 block access cycles. When
this bit is low, the second map decoder does not
respond to VMEbus D64 block access cycles.
A24 When this bit is high, the second map decoder
responds to VMEbus A24 (standard) access cycles.
When this bit is low, the second map decoder does
not respond to VMEbus A24 access cycles.
$FFF40010 (8 bits of 32)
20 19
A24 D64
R/W R/W
0 PSL 0 PSL
18 17 16
BLK PGM DAT
R/W R/W R/W
0 PSL 0 PSL 0 PSL