參數(shù)資料
型號: IT8712F
英文描述: EC-LPC I/O Programming Guide EC-v0.2 | PC Product Line
中文描述: 歐盟預測編碼的I / O編程指南歐共體v0.2 |個人電腦產品線
文件頁數(shù): 16/30頁
文件大小: 311K
代理商: IT8712F
4.4.1.7 Serial Port 2 Special Configuration Register 4 (Index=F3h, Default=7Fh)
Bit
7
Reserved
6-0
SCDIV6-0 (SCCLK Special Divisor).
H/W Reset
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IT8710F Programming Guide
Description
Insert
N
Power Up,
Clock
Y
ATR
Reset Card
N1
Decoding ATR
More
Protocols
PTS Request
PTS Confirm
Change Protocol
Transfer
Protocol Error
IDLE
Clock Stop
N
Y
Y
Y
Emergency
Remove
Waiting for ICC Insertion
Interrupt by UART sense PRESENT#
Power up FET to 5V, then allow CLOCK out and Reset
control, I/O in receive mode
Active level may differ
ICC responses to Answer-To-Reset within 400 - 40000 clock
cycles of SCCLK, if N1, then RESET active high, if N2, then
deactive
Power Down
Finish
Y
N
Remove
N2
Driver translates the ATR
If no protocol is available, then treat as all default setting;
If more protocols are available, the Driver can select a suitable
transfer protocol
IFD sends Protocol-Type-Selection request, and intends to
change Xfer protocol
If the ICC accepts, then returns a confirm code
Both IFD and ICC changed to new compromised protocol
Begin to Xfer Data
For normal deactivation, the Driver controls the IFD to enter
Deactive sequence
Stop Clock
Then power down FET
If users remove the ICC at any time
Figure 4-4. Smart Card Operating Sequence Example
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相關代理商/技術參數(shù)
參數(shù)描述
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