參數(shù)資料
型號: PC87393F-VJG
廠商: NATIONAL SEMICONDUCTOR CORP
元件分類: 外設(shè)及接口
英文描述: 100-Pin LPC SuperI/O Devices for Portable Applications
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: TQFP-100
文件頁數(shù): 95/148頁
文件大?。?/td> 1733K
代理商: PC87393F-VJG
2.0 Device Architecture and Configuration (Continued)
50
www.national.com
2.12 PARALLEL PORT CONFIGURATION
2.12.1
General Description
The PC8739x 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).
The Parallel Port includes two groups of runtime registers, as follows:
A group of 21 registers at first level offset, sharing 14 entries. Three of this registers (at offsets 403h, 404h and 405h)
are used only in the Extended ECP mode.
A group of four registers, used only in the Extended ECP mode, accessed by a second level offset.
The desired mode is selected by the ECR runtime register (offset 402h). The selected mode determines which runtime reg-
isters are used and which address bits are used for the base address. See Tables 18 and 19 for a listing of all registers, their
offset addresses, and the associated modes.
Table 18. Parallel Port Registers at First Level Offset
Offset
Mnemonic
Mode(s)
Type
Register Name
00h
DATAR
0,1
R/W
Data
AFIFO
3
W
ECP FIFO (Address)
DTR
4
R/W
Data (for EPP)
01h
DSR
0,1,2,3
RO
Status
STR
4
RO
Status (for EPP)
02h
DCR
0,1,2,3
R/W
Control
CTR
4
R/W
Control (for EPP)
03h
ADDR
4
R/W
EPP Address
04h
DATA0
4
R/W
EPP Data Port 0
05h
DATA1
4
R/W
EPP Data Port 1
06h
DATA2
4
R/W
EPP Data Port 2
07h
DATA3
4
R/W
EPP Data Port 3
400h
CFIFO
DFIFO
TFIFO
CNFGA
2
3
6
7
W
R/W
RO
PP Data FIFO
ECP Data FIFO
Test FIFO
Conguration A
401h
CNFGB
7
RO
Conguration B
402h
ECR
0,1,2,3
R/W
Extended Control
403h
EIR1
1.
These registers are extended to the standard IEEE1284 registers. They
are accessible only when enabled by bit 4 of the Parallel Port Congura-
tion register (see Section 2.12.3).
0,1,2,3
R/W
Extended Index
404h
EDR1
0,1,2,3
R/W
Extended Data
405h
EAR1
0,1,2,3
R/W
Extended Auxiliary Status
相關(guān)PDF資料
PDF描述
PC906N 896 MHz - 940 MHz YAGI ANTENNA, 10.65 dBi GAIN, 65 deg 3dB BEAMWIDTH
PC926N 928 MHz - 960 MHz YAGI ANTENNA, 10.65 dBi GAIN, 65 deg 3dB BEAMWIDTH
PCA.1D.694.CNAD42Z CABLE TERMINATED, FEMALE, RF CONNECTOR, SOCKET
PCA.1D.694.CNAD42 CABLE TERMINATED, FEMALE, RF CONNECTOR, SOCKET
PCA.1D.694.CNAD52Z CABLE TERMINATED, FEMALE, RF CONNECTOR, SOCKET
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PC87393VJG 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:IC, SUPER I/O DEVICE, TQFP-100, Logic Device Type:Buffer, Supply Voltage Min:3V,
PC87393-VJG 制造商:NSC 制造商全稱:National Semiconductor 功能描述:100-Pin LPC SuperI/O Devices for Portable Applications
PC87410 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PC87410 PCI-IDE Interface Controller
PC87410VLK 制造商:Rochester Electronics LLC 功能描述:- Bulk
PC87413 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LPC ServerI/O for Servers and Workstations