M16C62N Datasheet, PDF (94/213 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Serial I/O
Mitsubishi microcomputers
M16C / 62N Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
UARTi transmit/receive control register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
UiC1(i=0,1)
Address
When reset
03A516,03AD16
0216
Bit
symbol
Bit name
TE
Transmit enable bit
Function
(During clock synchronous
serial I/O mode)
Function
(During UART mode)
0 : Transmission disabled 0 : Transmission disabled
1 : Transmission enabled 1 : Transmission enabled
TI
Transmit buffer
empty flag
RE Receive enable bit
0 : Data present in
transmit buffer register
1 : No data present in
transmit buffer register
0 : Reception disabled
1 : Reception enabled
0 : Data present in
transmit buffer register
1 : No data present in
transmit buffer register
0 : Reception disabled
1 : Reception enabled
RI
Receive complete flag 0 : No data present in
0 : No data present in
receive buffer register
receive buffer register
1 : Data present in
1 : Data present in
receive buffer register
receive buffer register
Nothing is assigned.
In an attempt to write to these bits, write “0”. The value, if read, turns out to be “0”.
RW
UART2 transmit/receive control register 1
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
U2C1
Address
037D16
When reset
0216
Bit
symbol
Bit name
TE Transmit enable bit
Function
(During clock synchronous
serial I/O mode)
Function
(During UART mode)
0 : Transmission disabled 0 : Transmission disabled
1 : Transmission enabled 1 : Transmission enabled
RW
TI Transmit buffer
empty flag
RE Receive enable bit
0 : Data present in
transmit buffer register
1 : No data present in
transmit buffer register
0 : Reception disabled
1 : Reception enabled
0 : Data present in
transmit buffer register
1 : No data present in
transmit buffer register
0 : Reception disabled
1 : Reception enabled
RI Receive complete flag
0 : No data present in
receive buffer register
1 : Data present in
receive buffer register
U2IRS
UART2 transmit interrupt
cause select bit
0 : Transmit buffer empty
(TI = 1)
1 : Transmit is completed
(TXEPT = 1)
0 : No data present in
receive buffer register
1 : Data present in
receive buffer register
0 : Transmit buffer empty
(TI = 1)
1 : Transmit is completed
(TXEPT = 1)
U2RRM UART2 continuous
receive mode enable bit
0 : Continuous receive
mode disabled
1 : Continuous receive
mode enabled
Must always be “0”
U2LCH Data logic select bit
0 : No reverse
1 : Reverse
0 : No reverse
1 : Reverse
U2ERE Error signal output
enable bit
Must always be “0”
0 : Output disabled
1 : Output enabled
Note: UART2 clock synchronous serial I/O mode cannot be used in M16C/62N (80-pin version) group.
Figure 1.14.7. Serial I/O-related registers (4)
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