W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 146
![no-image](/images/no-image-200.jpg)
W90221X
Manufacturer Part Number
W90221X
Description
Pa-risc Embedded Controller
Manufacturer
Winbond Electronics Corp America
Datasheet
1.W90221X.pdf
(220 pages)
- Current page: 146 of 220
- Download datasheet (3Mb)
Device Status Register (DSR)
Port address: 0xf0000379
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
This read-only register reflects the inputs on the Parallel Port Interface and some of device
data FIFO and Command Register status.
W90221X version 0.6
BUSY#
0
0
1
0
1
0
1
NACK
1
Inverted parallel port interface signal “ Busy”
Parallel port interface signal “ nAck”
Parallel port interface signal “ Perror”
Parallel port interface signal “ Select”
Parallel port interface signal “ nFault”
Echo device data FIFO empty status
Device data FIFO is not empty
Device data FIFO is empty
Echo device data FIFO full status
Device data FIFO is not full
Device data FIFO is full
Command pended
Command register (CMD) contains no command code
A command code is in CMD which has not been transferred yet.
PE
2
Access type: read
SEL
3
NFAULT
4
EMPTY
5
FULL
6
Default: 0x---
CMDTRUE
7
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