參數(shù)資料
型號(hào)： 8XC51SLLOWVOLTAGE8XC51SL
廠商： Intel Corp.
英文描述： KEYBOARD CONTROLLER
中文描述： 鍵盤(pán)控制器
文件頁(yè)數(shù)： 41/58頁(yè)
文件大小： 233K
代理商： 8XC51SLLOWVOLTAGE8XC51SL
2003 Oct 30
41
Philips Semiconductors
Product specification
Low power single card reader
TDA8029
8.10.3.6
Power Control Register (PCR)
This register is used for starting or stopping card sessions.
Table 66
Power control register, address 7h, read and write
Table 67
Description of register bits
BIT
7
6
5
0
4
0
3
2
1
0
Symbol
Reset value
1V8
0
RSTIN
0
3V/5V
0
START
0
BIT
SYMBOL
DESCRIPTION
7 to 4
3
1V8
Not used.
Select 1.8 V.
If 1V8 = 1, then V
CC
= 1.8 V. It should be noted that specifications are not
guaranteed at this voltage when the supply voltage V
DD
is less than 3 V.
Card reset.
When the card is activated, pin RST is the copy of the value written in
RSTIN.
Select 3 V or 5 V.
If 3V/5V = 1, then V
CC
= 3 V. If 3V/5V = 0, then V
CC
= 5 V.
Activate and deactivate card.
If START = 1 is written by the controller, then the card is
activated (see description of activation sequence in Section 8.16). If the controller writes
START = 0, then the card is deactivated (see description of deactivation sequence in
Section 8.17). START is automatically reset in case of emergency deactivation.
2
RSTIN
1
0
3V/5V
START
For deactivating the card, only bit START should be reset.
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參數(shù)描述
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8XC54 制造商:INTEL 制造商全稱(chēng):Intel Corporation 功能描述:CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
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