Renesas M16C Series User Manual page 102

M30240 Group
UARTi transmit/receive control register 1
b7 b6 b5 b4 b3 b2
UART2 transmit/receive control register 1
b7 b6 b5 b4 b3 b2
Figure 1.79: Serial I/O-related registers (4)
Rev.1.00 Sep 24, 2003 Page 84 of 360
b1 b0 Symbol
UiC1(i=0,1)
Bit
Bit name
symbol
TE Transmit enable bit
TI Transmit buffer
empty flag
RE Receive enable bit
RI Receive complete flag
Nothing is assigned. Write "0" when writing to these bits.
If read, the value is "0".
b1 b0 Symbol
U2C1
Bit
Bit name
symbol
TE Transmit enable bit
Transmit buffer
TI
empty flag
RE Receive enable bit
RI Receive complete flag
U2IRS UART2 transmit interrupt
cause select bit
U2RRM UART2 continuous
receive mode enable bit
U2LCH Data logic select bit
U2ERE Error signal output
enable bit
Address
03A5
, 03AD
16
16
Function
(During clock synchronous
serial I/O mode)
0 : Transmission disabled 0 : Transmission disabled
1 : Transmission enabled 1 : Transmission enabled
0 : Data present in 0 : Data present in
transmit buffer register transmit buffer register
1 : No data present in 1 : No data present in
transmit buffer register transmit buffer register
0 : Reception disabled 0 : Reception disabled
1 : Reception enabled 1 : Reception enabled
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
Address
037D
16
Function
(During clock synchronous
serial I/O mode)
0 : Transmission disabled 0 : Transmission disabled
1 : Transmission enabled 1 : Transmission enabled
0 : Data present in 0 : Data present in
transmit buffer register transmit buffer register
1 : No data present in 1 : No data present in
transmit buffer register transmit buffer register
0 : Reception disabled 0 : Reception disabled
1 : Reception enabled 1 : Reception enabled
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
0 : Transmit buffer empty 0 : Transmit buffer empty
(TI = 1)
1 : Transmit is completed 1 : Transmit is completed
(TXEPT = 1) (TXEPT = 1)
0 : Continuous receive
mode disabled
Invalid
1 : Continuous receive
mode enabled
0 : No reverse 0 : No reverse
1 : Reverse 1 : Reverse
Must be fixed to "0" 0 : Output disabled
1 : Output enabled
UART0 to UART2
When reset
02
16
Function
R W
(During UART mode)
When reset
02
16
Function
R W
(During UART mode)
(TI = 1)