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參數(shù)資料
型號(hào): W90221F
廠商: WINBOND ELECTRONICS CORP
英文描述: PA-RISC Embedded Micro-Controller(惠普PA-RISC結(jié)構(gòu)的32位嵌入式微控制器)
中文描述: PA - RISC的嵌入式微控制器(惠普的PA - RISC結(jié)構(gòu)的32位嵌入式微控制器)
文件頁數(shù): 108/174頁
文件大小: 2102K
代理商: W90221F
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The above information is the exclusive intellectual property of Winbond Electronics and shall not be disclosed, distributed or reproduced without permission from Winbond.
108
Versi on 0. 4, March/2000
Table 6.6-1 : PPI Register Map
(IO base (BA) : 0xf0000000)
Port Addr.
Symbol
Access
Description
BA + 0x378
DL
R/W
Data Line Register
BA + 0x379
DSR
R
Device Status Register
BA + 0x37a
DCR
R/W
Device Control Register
BA + 0x37b
FSR
R
FIFO Status Register
BA + 0x37c
FCR
R/W
FIFO Control Register
BA + 0x37d
IER
R/W
Interrupt Enable Register
BA + 0x37e
IIR
R
Interrupt Identification Register
BA+ 0x37f
DR
R
Data Register
BA + 0x370
Dfifo
R/W
Data FIFO
BA + 0x374
CMD
R/W
Command Register
BA + 0x375
TOR
R/W
Time Out Register
BA +
0x376 ~
BA +
0x377
-
-
Reserve for PPI future extension
Data Line Register (DL)
Port address : 0xf0000378
Read/Write
Power-on Default : --
0
1
2
3
4
5
6
7
8-bit Data Lines status
Bits 0-7 Data Lines status
This is the standard parallel port data register. Writing to this register will drive data to the
parallel port data lines. Reads to this register return the value on the data lines.
Device Status Register (DSR)
Port address : 0xf0000379
Read only
Power-on Default : ---
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