參數(shù)資料
型號: M34514M8
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
中文描述: 單芯片4位微機的CMOS
文件頁數(shù): 36/106頁
文件大?。?/td> 1304K
代理商: M34514M8
36
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
PRELIMINARY
Notice: This is not a final specification.
change.
Some parametric limits are subject to
(5) How to use serial I/O
Figure 24 shows the serial I/O connection example. Serial I/O inter-
rupt is not used in this example. In the actual wiring, pull up the
wiring between each pin with a resistor. Figure 25 shows the data
transfer timing and Table 13 shows the data transfer sequence.
Fig. 24 Serial I/O connection example
S
OUT
S
RDY
signal
S
CK
S
IN
D
5
S
CK
S
OUT
S
IN
D
5
Master (clock control)
Serial I/O interrupt enable bit
(SNZSI instruction is valid)
Interrupt control register V2
Serial I/O mode register J1
Serial I/O port
S
CK,
S
OUT,
S
IN
Instruction clock divided by
8 or 4 selected as a transfer
clock
Internal clock selected as
a synchronous clock
Slave (external clock)
0
1
(Bit 3)
(Bit 0)
1
0
1
This bit is not valid
when J1
0
=“0”
: Set an arbitrary value.
(Bit 3)
0
(Bit 0)
(Bit 3)
(Bit 0)
(Bit 3)
(Bit 0)
Serial I/O interrupt enable bit
(SNZSI instruction is valid)
Interrupt control register V2
Serial I/O port
S
CK,
S
OUT,
S
IN
External clock selected as
a synchronous clock
Serial I/O mode register J1
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