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PC87393F Datasheet(PDF) 123 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # PC87393F
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)

PC87393F Datasheet(HTML) 123 Page - National Semiconductor (TI)

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8.0 Legacy Functional Blocks (Continued)
123
www.national.com
8.2
PARALLEL PORT
8.2.1
General Description
The Parallel Port supports all IEEE1284 standard communication modes: Compatibility (known also as Standard or SPP),
Bidirectional (known also as PS/2), FIFO, EPP (known also as Mode 4) and ECP (with an optional Extended ECP mode).
8.2.2
Parallel Port Register Map
The Parallel Port functional block register maps are grouped according to first and second level offsets. EPP and second
level offset registers are available only when base address is 8-byte aligned.
Table 33. Parallel Port Register Map for First Level Offset
First Level
Offset
Mnemonic
Register Name
Modes (ECR Bits)
765
Type
000h
DATAR
PP Data
000
001
R/W
000h
AFIFO
ECP Address FIFO
0 1 1
W
001h
DSR
Status
All Modes
RO
002h
DCR
Control
All Modes
R/W
003h
ADDR
EPP Address
1 0 0
R/W
004h
DATA0
EPP Data Port 0
1 0 0
R/W
005h
DATA1
EPP Data Port 1
1 0 0
R/W
006h
DATA2
EPP Data Port 2
1 0 0
R/W
007h
DATA3
EPP Data Port 3
1 0 0
R/W
400h
CFIFO
PP Data FIFO
0 1 0
W
400h
DFIFO
ECP Data FIFO
0 1 1
R/W
400h
TFIFO
Test FIFO
1 1 0
R/W
400h
CNFGA
Configuration A
1 1 1
RO
401h
CNFGB
Configuration B
1 1 1
RO
402h
ECR
Extended Control
All Modes
R/W
403h
EIR
Extended Index
All Modes
R/W
404h
EDR
Extended Data
All Modes
R/W
405h
EAR
Extended Auxiliary Status
All Modes
R/W
Table 34. Parallel Port Register Map for Second Level Offset
Second Level
Offset
Register Name
Type
00h
Control0
R/W
02h
Control2
R/W
04h
Control4
R/W
05h
PP Confg0
R/W



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