M30622M4 MITSUBISHI [Mitsubishi Electric Semiconductor], M30622M4 Datasheet - Page 113

• Manufacturer Part Number: M30622M4
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Serial I/O
Figure 1.19.1. Block diagram of UARTi (i = 0 to 2)
(UART0)
(UART1)
/ CTS
(UART2)
CTS
CTS
CTS
0
0
2
1
/ CLKS
/ RTS
/ RTS
/ RTS
RxD
RxD
CLK
CLK
RxD
CLK
Clock source selection
Clock source selection
2
0
0
0
1
2
2
1
1
1
Clock source selection
f
f
f
f
f
f
1
8
32
f
f
f
1
8
32
1
8
32
reversing
reversing
reversing
polarity
polarity
polarity
circuit
circuit
circuit
CLK
CLK
CLK
reversing circuit
CTS/RTS selected
RxD polarity
Internal
Internal
CTS0 from UART1
Internal
CTS/RTS
selected
External
Clock output pin
select switch
External
External
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when internal clock is selected)
Vcc
Bit rate generator
Bit rate generator
(address 03A1
Bit rate generator
(address 0379
(address 03A9
CTS/RTS disabled
CTS/RTS separated
1 / (n
1 / (n
1 / (n
Vcc
CTS/RTS disabled
CTS/RTS disabled
CTS/RTS disabled
CTS/RTS separated
0
1
2
+1)
+1)
+1)
16
16
16
)
)
)
Clock synchronous type
Clock synchronous type
1/16
1/16
1/16
1/16
1/2
Clock synchronous type
Clock synchronous type
1/2
CTS
1/16
1/16
V
Clock synchronous type
Clock synchronous type
1/2
CTS/RTS disabled
CC
Clock synchronous type
(when internal clock is selected)
UART reception
UART transmission
Clock synchronous type
(when internal clock is selected)
CTS/RTS disabled
0
UART transmission
UART reception
Clock synchronous type
(when internal clock is selected)
UART reception
UART transmission
Clock synchronous type
(when external clock is
RTS
selected)
CTS
RTS
CTS
Clock synchronous type
(when external clock is
selected)
Clock synchronous type
(when external clock is
selected)
2
2
0
0
CTS0 to UART0
n0 : Values set to UART0 bit rate generator (BRG0)
n1 : Values set to UART1 bit rate generator (BRG1)
n2 : Values set to UART2 bit rate generator (BRG2)
RTS
CTS
control circuit
Transmission
control circuit
Reception
1
1
Transmission
control circuit
Transmission
control circuit
control circuit
control circuit
Reception
Reception
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Receive
clock
Transmit
clock
Receive
clock
Transmit
clock
Receive
clock
Transmit
clock
Transmit/
receive
unit
Transmit/
Transmit/
receive
receive
unit
unit
Mitsubishi microcomputers
M16C / 62 Group
reversing
polarity
circuit
TxD
TxD
TxD
TxD
0
1
2
113