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參數資料
型號: W83637HF
廠商: WINBOND ELECTRONICS CORP
英文描述: LPC I/O
中文描述: LPC的I / O
文件頁數: 97/149頁
文件大小: 936K
代理商: W83637HF
W83637HF
Publication Release Date: June 25, 2003
- 92 -
Revision 1.3
Extended Control Register (ECR at base address + 7, default 12h)
This register contains reset control bits, clock frequency selection bits, clock stop control bits and SCIO
direction control bit.
Warm reset
SCIODIR
CLKSTP
CLKSTPL
SCKFS0
SCKFS1
Reserved
Cold reset
7 6 5 4 3 2 1 0
Bit 7: Cold reset. Setting "1" to this bit turns off power to Smart Card interface by pulling up SCPWR#.
SCCLK is stopped, SCRST# kept low, SCIO in input mode and SCLED is inactive. ECR's
SCIODIR, SCKFS1 and SCKFS0 control bits and control bits in CBR, GTR, BLH and BLL are
cleared to default values. User must write a "0" to this bit to recover to normal state.
Bit 6: Reserved.
Bit 5, 4: SCKFS1 and SCKFS0 means SCCLK frequency selection bit 1 and 0. They selects working
clock frequency as following table. Default values are 01h.
SCKFS1, SCKFS0
SCCLK frequency
00
1.5 MHz
01
3.0 MHz
10
6.0 MHz
11
12 MHz
Bit 3: CLKSTP means clock stop control bit. Setting "1" to this bit stops SCCLK at a voltage level
specified by CLKSTPL (bit 2 of ECR).
Bit 2: CLKSTPL means clock stop voltage level.
= 0
SCCLK stops at low if CLKSTP is also set to "1".
= 1
SCCLK stops at high if CLKSTP is also set to "1".
Bit 1: SDIODIR means SDIO direction.
= 0
SDIO is in output mode.
= 1
SDIO is in input mode.
相關PDF資料
PDF描述
W83637HF-AW LPC I/O
W83697HF WINBOND I/O
W83697 WINBOND I/O
W83697F WINBOND I/O
W83697SF WINBOND I/O
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參數描述
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