m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 263

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

SERIAL I/O
11.2 Block description
Fig. 11.2.4 Structure of UARTi transmit/receive control register 1
11-8
11.2.3 UARTi transmit/receive control register 1
Figure 11.2.4 shows the structure of UARTi transmit/receive control register 1.
UART0 transmit/receive control register 1 (Address 35
UART1 transmit/receive control register 1 (Address 3D
UART2 transmit/receive control register 1 (Address B5
Note: Bits 5 to 7 are invalid in the clock synchronous serial I/O mode.
Bit
0
1
2
3
4
5
6
7
Transmit enable bit
Transmit buffer empty flag
Receive enable bit
Receive complete flag
Overrun error flag
Framing error flag
(Valid in UART mode)
Parity error flag
(Valid in UART mode)
Error sum flag
(Valid in UART mode)
Bit name
(Note)
(Note)
(Note)
7905 Group User’s Manual Rev.1.0
0 : Transmission disabled
1 : Transmission enabled
0 : Data is present in the transmit buffer register
1 : No data is present in the transmit buffer register
0 : Reception disabled
1 : Reception enabled
0 : No data is present in the receive buffer register
1 : Data is present in the receive buffer register
0 : No overrun error
1 : Overrun error detected
0 : No framing error
1 : Framing error detected
0 : No parity error
1 : Parity error detected
0 : No error
1 : Error detected
16
16
16
)
)
)
Function
b7 b6 b5 b4 b3 b2 b1 b0
At reset
0
1
0
0
0
0
0
0
R/W
RW
RW
RO
RO
RO
RO
RO
RO