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PC87393 Datasheet(PDF) 124 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87393
Description  100-Pin LPC SuperI/O Devices for Portable Applications
PDF  148 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

PC87393 Datasheet(HTML) 124 Page - National Semiconductor (TI)

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8.0 Legacy Functional Blocks (Continued)
124
www.national.com
8.2.3
Parallel Port Bitmap Summary
The Parallel Port functional block bitmaps are grouped according to first and second level offsets.
Table 35. Parallel Port Bitmap Summary for First Level Offset
Register
Bits
Offset
Mnemonic
76543210
000h
DATAR
Data Bits
AFIFO
Address Bits
001h
DSR
Printer
Status
ACK
Status
PE Status
SLCT
Status
ERR
Status
Reserved
EPP Time-
out Status
002h
DCR
Reserved
Direction
Control
Interrupt
Enable
PP Input
Control
Printer
Initialization
Control
Automatic
Line Feed
Control
Data
Strobe
Control
003h
ADDR
EPP Device or Register Selection Address Bits
004h
DATA0
EPP Device or R/W Data
005h
DATA1
EPP Device or R/W Data
006h
DATA2
EPP Device or R/W Data
007h
DATA3
EPP Device or R/W Data
400h
CFIFO
Data Bits
400h
DFIFO
Data Bits
400h
TFIFO
Data Bits
400h
CNFGA
Reserved
Bit7ofPP
Confg0
Reserved
401h
CNFGB
Reserved
Interrupt
Request
Value
Interrupt Select
Reserved
DMA Channel Select
402h
ECR
ECP Mode Control
ECP
Interrupt
Mask
ECP DMA
Enable
ECP
Interrupt
Service
FIFO Full
FIFO
Empty
403h
EIR
Reserved
Second Level Offset
404h
EDR
Data Bits
405h
EAR
FIFO Tag
Reserved



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