參數(shù)資料
型號: HD404812TF
廠商: Renesas Technology Corp.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數(shù): 60/100頁
文件大?。?/td> 384K
代理商: HD404812TF
HD404818 Series
58
(IFS
1)
Octal counter = 000
transmit clock disable
STS waiting state
Transmit clock
8 external transmit clocks
STS instruction
Transmit clock wait state
(Octal counter = 000)
Transfer state
(Octal counter
000)
Wt oSMR
SSntuto
8itra rnmtSMRwie
(FS
1
(FS
1
Figure 30 Serial Interface Operation States
Example of Transmit Clock Error Detection:
The serial interface malfunctions when the transmit clock
is disturbed by external noise. In this case, transmit clock errors can be detected by the procedure shown in
figure 31.
If more than 8 transmit clocks are applied in the transmit clock wait state, the state of the serial interface
shifts in the following sequence: transfer state, transmit clock wait state, and transfer state again. The serial
interrupt request flag should be reset before entering into the STS waiting state by writing data to SMR.
This procedure causes the serial interface request flag to be set again.
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