M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 354

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

Clock-Synchronous Serial I/O
Figure 2.4.10. Operation timing of transmission in clock-synchronous serial I/O mode, transfer
UART1 Transmit
interrupt request bit “0”
CLK, CLKS
select bit 0
Transfer clock
Transmit enable bit
Transmit buffer
empty flag
CLK, CLKS
select bit 1
CLK
CLKS
TxD
Example of wiring
Example of operation
1
1
1
(IR)
(TE)
(CLKMD0)
(CLKMD1)
(TI)
clock output from multiple pins function selected
“1”
“0”
“1”
“0”
“1”
“0”
“1”
“0”
“1”
Microcomputer
Note: This applies when performing only transmission with an internal
(1) Transmission enabled
CLKS
(2) Start transmission
CLK
T
X
D
D
clock selected in the clock synchronous serial I/O mode.
0
1
1
1
D
(P6
(P6
(P6
1
D
7
4
5
)
)
)
2
D
3
D
4
D
5
D
Cleared to “0” when interrupt request is accepted, or cleared by software
6
(3) Transmission is complete
D
7
CLK
IN
(4) Clock switched
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
D
0
D
1
D
2
IN
CLK
D
3
D
4
D
Mitsubishi microcomputers
5
M16C / 62 Group
D
6
D
7
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