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參數(shù)資料
| 型號(hào)： | TDA8005 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Low-Power Smart Card Coupler(低功耗智能卡藕合器) |
| 中文描述： | 低功耗智能卡器（低功耗智能卡藕合器） |
| 文件頁(yè)數(shù)： | 5/32頁(yè) |
| 文件大?。?/td> | 198K |
| 代理商： | TDA8005 |
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1996 Sep 25
13
Philips Semiconductors
Product specication
Low-power smart card coupler
TDA8005
USE OF PERIPHERAL INTERFACE
Write operation:
Select the correct register with R/W, REG0, REG1.
Write the word in the peripheral shift register (PSR) with
DATA and STROBE. DATA is shifted on the rising edge
of STROBE. 8 shifts are necessary.
Give a negative pulse on ENABLE. The data is parallel
loaded in the register on the falling edge of ENABLE.
Read operation:
Select the correct register with R/W, REG0 and REG1.
Give a first negative pulse on ENABLE. The word is
parallel loaded in the peripheral shift register on the
rising edge of ENABLE.
Give a second negative pulse on ENABLE for
configuring the PSR in shift right mode.
Read the word from PSR with DATA and STROBE.
DATA is shifted on the rising edge of STROBE. 7 shifts
are necessary.
Table 3
Example of peripheral interface
Notes
1. The new configuration is supposed to be in the accumulator.
2. The character will be in the accumulator.
CHANGE OF CLOCK CONFIGURATION(1)
READ CHARACTER ARRIVED IN UART RECEIVE(2)
CLR REG0
CLR REG1
CLR R/W
SET R/W
MOV R2, #8
CLR ENABLE
LOOP
RRC A
SET ENABLE
MOV DATA C
CLR ENABLE
CLR STROBE
SET ENABLE
SET STROBE
MOV R2, #8
DJNZ R2, LOOP
LOOP
MOV C, DATA
CLR ENABLE
RRC A
SET ENABLE
CLR STROBE
SET DATA
SET STROBE
RET
DJNZ R2, LOOP
SET DATA
RET
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相關(guān)代理商/技術(shù)參數(shù) |
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| TDA8005A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power 3 V/5 V smart card coupler |
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| TDA8005G | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power smart card coupler |
| TDA8005H | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Low-power smart card coupler |
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