Motorola MVME172 - Manual (Page 127)

LCSR Programming Model
http://www.mcg.mot.com/literature 2-49
2
Local Bus to VMEbus Enable Control Register
This register is the map decoder enable register for the four programmable
local bus to VMEbus map decoders.
EN1 When this bit is high, the first local bus to VMEbus map
decoder is enabled. When this bit is low, the first local bus
to VMEbus map decoder is disabled.
EN2 When this bit is high, the second local bus to VMEbus
map decoder is enabled. When this bit is low, the second
local bus to VMEbus map decoder is disabled.
EN3 When this bit is high, the third local bus to VMEbus map
decoder is enabled. When this bit is low, the third local
bus to VMEbus map decoder is disabled.
EN4 When this bit is high, the fourth local bus to VMEbus map
decoder is enabled. When this bit is low, the fourth local
bus to VMEbus map decoder is disabled.
ADR/SIZ $FFF4002C (4 bits of 32)
BIT 19 18 17 16
NAME EN4 EN3 EN2 EN1
OPER R/W R/W R/W R/W
RESET 0 PSL 0 PSL 0 PSL 0 PSL