M30621ECGP MITSUBISHI [Mitsubishi Electric Semiconductor], M30621ECGP Datasheet - Page 93

• Manufacturer Part Number: M30621ECGP
• Description: SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Serial I/O
Figure 1.14.7. Serial I/O-related registers (4)
UARTi transmit/receive control register 1
b7
UART2 transmit/receive control register 1
b7
b6
b6
b5
b5
b4
b4
b3
b3
b2
b2
b1
b1
b0
b0
Note: UART2 clock synchronous serial I/O mode cannot be used in M16C/62 (80-pin version) group.
symbol
U2RRM UART2 continuous
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
symbol
U2LCH
U2ERE Error signal output
TE
TI
RE
RI
U2IRS UART2 transmit interrupt
Bit
RE
Bit
TE
TI
RI
UiC1(i=0,1)
Symbol
Symbol
U2C1
Transmit buffer
empty flag
Transmit buffer
empty flag
Receive enable bit
Receive complete flag
Receive enable bit
Receive complete flag
cause select bit
receive mode enable bit
Data logic select bit
enable bit
Transmit enable bit
Transmit enable bit
Bit name
Bit name
03A5
Address
Address
037D
16
,
03AD
16
0 : Transmission disabled
1 : Transmission enabled
0 : Transmission disabled
1 : Transmission enabled
0 : Data present in
1 : No data present in
0 : Reception disabled
1 : Reception enabled
0 : No data present in
1 : Data present in
0 : Data present in
1 : No data present in
0 : Reception disabled
1 : Reception enabled
0 : No data present in
1 : Data present in
0 : Transmit buffer empty
1 : Transmit is completed
0 : Continuous receive
1 : Continuous receive
0 : No reverse
1 : Reverse
Must be fixed to “0”
(During clock synchronous
(During clock synchronous
16
transmit buffer register
transmit buffer register
receive buffer register
receive buffer register
transmit buffer register
transmit buffer register
receive buffer register
receive buffer register
(TXEPT = 1)
mode disabled
mode enabled
(TI = 1)
serial I/O mode)
serial I/O mode)
When reset
When reset
Function
Function
02
02
16
16
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
0 : Transmission disabled
1 : Transmission enabled
0 : Data present in
1 : No data present in
0 : Reception disabled
1 : Reception enabled
0 : No data present in
1 : Data present in
0 : Transmission disabled
1 : Transmission enabled
0 : Data present in
1 : No data present in
0 : Reception disabled
1 : Reception enabled
0 : No data present in
1 : Data present in
0 : Transmit buffer empty
1 : Transmit is completed
Invalid
0 : No reverse
1 : Reverse
0 : Output disabled
1 : Output enabled
transmit buffer register
transmit buffer register
receive buffer register
receive buffer register
transmit buffer register
transmit buffer register
receive buffer register
receive buffer register
(TXEPT = 1)
(TI = 1)
(During UART mode)
(During UART mode)
Function
Function
M16C / 62 Group (80-pin)
Mitsubishi microcomputers
R
R
W
W
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