參數(shù)資料
型號: M37640E8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCONTROLLER
中文描述: 單芯片8位CMOS單片機
文件頁數(shù): 115/172頁
文件大?。?/td> 1193K
代理商: M37640E8
7600 Series
Mitsubishi Microcomputer
M37640E8-XXXF Preliminary Specification
Serial I/O
7/9/98
2-103
Regardless of whether an internal or external clock is selected, after an 8-bit transfer, the interrupt
request bit is set. Figure 2-119 shows the timing for the serial I/O with the LSB-first option selected.
The SIO can be operated in slave mode. In slave mode the SRDY pin becomes an input from a
master. If SRDY is held high, the shift clock is inhibited, STXD is tri-stated, and shift count is reset.
If SRDY is held low, then the normal shift operation is performed.
Figure 2-116. Clock Synchronous SIO Block Diagram
1
1
1
1
1
1
1
1
Φ
1
S
Data Bus
S
C
SRDY
P80 Latch
P81 Latch
SCLK
P83 Latch
STXD
S
SIO Interrupt Request
S
SRXD
0
1
P
P
0
1
R
E
0
SCSGCLK
1
0
0
1
C
SRDY
SLAVE
Divider
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