參數(shù)資料
型號(hào): M37560MC-XXXGP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù): 32/65頁(yè)
文件大?。?/td> 955K
代理商: M37560MC-XXXGP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
7560 Group
32
Serial I/O2
The serial I/O2 function can be used only for clock synchronous
serial I/O.
For clock synchronous serial I/O2, the transmitter and the receiver
must use the same clock. When the internal clock is used, transfer
is started by a write signal to the serial I/O2 register.
When an internal clock is selected as the synchronous clock of the
serial I/O2, either P6
2
or P6
3
can be selected as an output pin of
the synchronous clock. In this case, the pin that is not selected as
an output pin of the synchronous clock functions as a port.
[Serial I/O2 Control Register (SIO2CON)] 001D16
The serial I/O2 control register contains 8 bits which control vari-
ous serial I/O2 functions.
Fig. 28 Structure of serial I/O2 control register
Fig. 29 Block diagram of serial I/O2 function
Serial I/O2 control register
(SIO2CON : address 001D
16
)
Internal synchronous clock select bits
IN
)/8
0 0 1: f(X
IN
)/16
0 1 0: f(X
IN
)/32
0 1 1: f(X
IN
)/64
1 0 0:
1 0 1:
1 1 0: f(X
IN
)/128
1 1 1: f(X
IN
)/256
b7
Serial I/O2 port selection bit
0: I/O port
1: S
OUT2
,S
CLK21
/S
CLK22
signal output
P6
1
/S
OUT2
P-channel output disable bit
0: CMOS output (in output mode)
1: N-channel open-drain output
(in output mode)
Transfer direction selection bit
0: LSB first
1: MSB first
Synchronous clock selection bit
0: External clock
1: Internal clock
Synchronous clock output pin selection bit
0: S
CLK21
1: S
CLK22
b0
b2 b1 b0
Do not set
X
IN
1
0
0
1
0
1
S
C
(Note)
1/8
1/16
1/32
1/64
1/128
1/256
Data bus
Serial I/O2
interrupt request
Serial I/O2 port selection bit
Serial I/O counter 2 (3)
Serial I/O shift register 2 (8)
Synchronous circuit
Synchronous clock
selection bit
External clock
Internal synchronous
clock select bits
D
P6
3
latch
P6
3
/S
CLK22
P6
2
/S
CLK21
P6
1
/S
OUT2
P6
0
/S
IN2
P6
2
latch
P6
1
latch
(Note)
Note:
It is selected by the synchronous clock selection bit, the synchronous
clock output pin selection bit, and the serial I/O port selection bit.
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