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E-1
E
E
Appendix E -
Registers
Registers Specific to the EPC-9
Registers in the I/O space that are specific to the EPC-9 are defined below. Only
registers 814Ch-814Fh are "dual-ported" to both the PC and VMEbus. The addresses
shown below are used by the PC port. The VME addresses for the registers 814Ch-
814Fh are described later.
Message High Register
MH[7..0]
814Ch
Message High Register
MH[15..8]
814Dh
Message Low Register
ML[7..0]
814Eh
Message Low Register
ML[15..8]
814Fh
Control Register
SLOT1
RONR
WDTR
WDTV
8150h
ULA
ULA[7..0]
8151h
VME Event Register
11111
MSGE
SIGE
WDTE
8152h
VME Event Enable
Register
LRRY
LWRY
11
IACK
MSGIE
SIGIE
WDTIE
8153h
Status/Control Register
SRIE
1
SYSC
1
RDY
PASS
NOSF
RSTP
8154h
Status/Control Register
0
MODI
SYSR
1
1
1
1
1
8155h
Model Register
MODEL
8156h
Signal FIFO Low
SRFL
8158h
Signal FIFO High
SRFH
8159h
Response Register
LOCK
RRIE
ABMH
SIG
MLK
WRC
FSIG
LSIG
815Ah
Response Register
0
1
DOR
DIR
ERR
RRY
WRY
1
815Bh
IRQ Register
0
0
0
0
0
IRQ
2
IRQ
1
IRQ
0
8161h
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