M30622 Mitsubishi, M30622 Datasheet - Page 113

• Manufacturer Part Number: M30622
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

Serial I/O
Figure 1.19.1. Block diagram of UARTi (i = 0 to 2)
/ CTS
(UART0)
(UART1)
(UART2)
CTS
CTS
CTS
Tentative Specifications REV.A
0
Note 1: In M30623(80-pin package), CLK
Note 2: In M30623(80-pin package), do not use UART2 as clock synchronous serial I/O.
S
0
2
1
/ CLKS
/ RTS
pecifications in this manual are tentative and subject to change.
/ RTS
/ RTS
RxD
RxD
CLK
RxD
CLK
CLK
Clock source selection
Clock source selection
2
0
0
0
1
1
1
2
2
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
(address 0379
Bit rate generator
(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
2
)
)
)
and CTS
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 transmission
UART reception
0
Clock synchronous type
(when internal clock is selected)
CTS/RTS disabled
UART reception
UART transmission
UART reception
Clock synchronous type
(when internal clock is selected)
UART transmission
Clock synchronous type
(when external clock is
RTS
selected)
CTS
2
RTS
CTS
/RTS
Clock synchronous type
(when external clock is
selected)
Clock synchronous type
(when external clock is
selected)
113
2
2
0
0
2
CTS0 to UART0
have no external pin.
RTS
CTS
control circuit
Transmission
control circuit
Reception
1
1
Transmission
control circuit
Transmission
control circuit
control circuit
control circuit
Reception
Reception
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)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Receive
clock
Transmit
clock
Receive
clock
Transmit
clock
Receive
clock
Transmit
clock
Transmit/
receive
unit
Mitsubishi microcomputers
Transmit/
Transmit/
receive
receive
unit
unit
M16C / 62T Group
reversing
polarity
circuit
TxD
TxD
TxD
TxD
0
1
2