參數(shù)資料
型號: HD404369S
廠商: Hitachi,Ltd.
英文描述: 4-bit HMCS400-Series microcomputer
中文描述: 4位HMCS400系列微機
文件頁數(shù): 79/115頁
文件大?。?/td> 452K
代理商: HD404369S
HD404369 Series
79
Transfer completion
(IFS 1)
Interrupts inhibited
IFS 0
SMR write
IFS = 1
Transmit clock
error processing
Normal
termination
Yes
No
Transmit clock error detection flowchart
Transmit clock error detection procedure
State
SCK
pin (input)
Transmit clock
wait state
Transfer state
Transfer state
Transmit clock wait state
Noise
Transfer state has been
entered by the transmit clock
error. When SMR is written,
IFS is set.
Flag set because octal
counter reaches 000
Flag reset at
transfer completion
SMR write
IFS
1
2
3
4
5
6
7
8
Figure 61 Transmit Clock Error Detection
Registers for Serial Interface
The serial interface operation is selected, and serial data is read and written by the following registers.
Serial Mode Register (SMR: $005)
Serial Data Register (SRL: $006, SRU: $007)
Port Mode Register A (PMRA: $004)
Port Mode Register C (PMRC: $025)
Miscellaneous Register (MIS: $00C)
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