Vmebus Slave Gcsr Group Address Register; Vmebus Slave Gcsr Board Address Register - Motorola MVME162FX Programmer's Reference Manual

VMEchip2
2

VMEbus Slave GCSR Group Address Register

ADR/SIZ
BIT
NAME
OPER
RESET

VMEbus Slave GCSR Board Address Register

ADR/SIZ
BIT
NAME
OPER
RESET
2-48
When this bit is high, D16 data transfers are
D16
performed to the segment defined by map decoder
1. When this bit is low, D32 data transfers are per-
formed to the segment defined by map decoder 1.
31
GCSR Group Address Register 4
This register defines the group address of the GCSR as viewed from
the VMEbus. The GCSR address is defined by the group address
and the board address. Once enabled, the GCSR register should not
be reprogrammed unless the VMEchip2 is VMEbus master.
GCSR Group These bits define the group portion of the GCSR
address. These bits are compared with VMEbus
address lines A8 through A15. The recommended
group address for the MVME162FX is $D2.
23 . . .
GCSR Board Address
R/W
$F PS
This register defines the board address of the GCSR as viewed from
the VMEbus. The GCSR address is defined by the group address and
the board address. Once enabled, the GCSR register should not be
reprogrammed unless the VMEchip2 is VMEbus master. The value
$F in the GCSR board address register disables the map decoder.
The map decoder is enabled when the board address is not $F.
$FFF4002C (8 bits of 32)
. . .
R/W
$00 PS
$FFF4002C (4 bits of 32)
20
24