pc87307 National Semiconductor Corporation, pc87307 Datasheet - Page 133

• Manufacturer Part Number: pc87307
• Description: Plug And Play Compatible And Pc97 Compliant Superi/o
• Manufacturer: National Semiconductor Corporation

0
0
0
7
7
0
7
7
Reserved
0
Reserved
0
D7
6
6
0
0
6
6
IRQ Signal Value
Reserved
0
0
D6
5
5
0
5
0
ECP Mode Control
5
Reserved
D5
0
1
0
4
4
0
4
4
ECP Interrupt Mask
D4
0
0
0
Reserved
3
3
0
3
3
Bits 7-5 of ECR = 111
Interrupt Select
ECP DMA Enable
D3
Reserved
0
1
2
2
0
0
2
2
Reserved
D2
0
0
ECP Interrupt Service
Data Bits
0
1
1
0
1
1
FIFO Full
D1
0
1
0
0
0
0
Second Level Offset
0
0
DMA Channel Select
Configuration Register B
Reset
Required
Reset
Required
Reset
Required
Reset
Required
D0
FIFO Empty
ECP Extended Index
ECP Extended Data
Extended Control
Register (EDR)
Register (EIR)
Parallel Port (Logical Device 4)
Offset 404h
Offset 403h
Offset 401h
Offset 402h
(CNFGB)
(ECR)
133
0
7
0
7
0
0
7
7
Reserved
FIFO Tag
Reserved
SPP Compatibility
0
6
0
6
0
0
6
6
0
5
0
5
0
0
5
5
Channel Address Enable
DCR Register Live
0
PP DMA Request Inactive Time
0
Reserved
4
4
0
0
4
4
0
Freeze Bit
0
3
Revision 1.7 or 1.9 Select
3
0
0
3
3
Reserved
Reserved
EPP 1.7 ZWS Control
1
Reserved
0
2
2
0
0
2
2
Reserved
1
Reserved
0
1
0
0
1
1
1
1
Reserved
0
Reserved
0
PP DMA Request
Active Time
0
0
0
0
0
Reset
Required
Reset
Required
Reset
Required
Reset
Required
EPP Time-Out
Interrupt Mask
Reserved
ECP Extended Auxiliary
Status Register (EAR)
Control4 Register
Control0 Register
Control2 Register
Second Level
Second Level
Second Level
Offset 405h
Offset 04h
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Offset 00h
Offset 02h