PCI-SIO4 User Manual
General Standards Corporation
8302A Whitesburg Drive Huntsville, AL 35802, Phone: (256) 880-8787
47
D18
Local DMA Channel 0 Interrupt Enable
D19
Local DMA Channel 1 Interrupt Enable
D20
Local Doorbell Interrupt Status
D21
DMA Channel 0 Interrupt Status
D22
DMA Channel 1 Interrupt Status
D23
BIST Interrupt Status
D24
A ‘0’ indicates a Direct Master was bus master during a Master or Target abort.
D25
A ‘0’ indicates that DMA CH0 was bus master during a Master or Target abort.
D26
A ‘0’ indicates that DMA CH1 was bus master during a Master or Target abort.
D27
A ‘0’ indicates that a Target Abort was generated by the PCI9080 after 256 consecutive
Master retries to a Target.
D31:28
PCI Mailbox 3:0
Write Status
3.3.2
S
ERIAL
EEPROM
C
ONTROL
,
PCI
C
OMMAND
C
ODES
,
U
SER
I/O
C
ONTROL
,
I
NIT
C
ONTROL
R
EGISTER
:
(PCI
0
X
6C,
R
ESET
0
X
0
X
001767E)
D3:0
PCI Read Command Code for DMA
D7:4
PCI Write Command Code for DMA
D11:8
PCI Memory Read Command Code for Direct Master (Unused)
D15:12
PCI Memory Write Command Code for Direct Master (Unused)
D16
General Purpose Output (Unused)
D17
General Purpose Input (Unused)
D23:18
Reserved
D24
Serial EEPROM clock for Local or PCI bus reads or writes to Serial EEPROM.
D25
Serial EEPROM chip select
D26
Write bit to serial EEPROM
D27
Read serial EEPROM data bit
D28
Serial EEPROM present
D29
Reload Configuration Registers
D30
PCI Adapter Software Reset
D31
Local Init Status
A ‘1’ indicates Local initialization done.
3.3.3
PCI
P
ERMANENT
C
ONFIGURATION
ID
R
EGISTER
:
(PCI
0
X
70,
R
ESET
0
X
10B59080)
D15:0
Permanent Vendor ID (0x10B5)
D31:16
Permanent Device ID (0x9080)
3.3.4
PCI
P
ERMANENT
R
EVISION
ID
R
EGISTER
:
(PCI
0
X
74)
D7:0
Permanent Revision ID