m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 259

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

Fig. 11.2.2 Structure of UARTi transmit/receive mode register
SERIAL I/O
11.2 Block description
11-4
11.2.1 UARTi transmit/receive mode register
Figure 11.2.2 shows the structure of UARTi transmit/receive mode register.
UART0 transmit/receive mode register (Address
UART1 transmit/receive mode register (Address
UART2 transmit/receive mode register (Address
Note: Bits 4 to 6 are invalid in the clock synchronous serial I/O mode. (They may be either “0” or “1.”) Additionally, fix bit 7 to “0.”
Bit
0
1
2
3
4
5
6
7
Serial I/O mode select bits
Internal/External clock select bit
Stop bit length select bit
(Valid in UART mode)
Odd/Even parity select bit
(Valid in UART mode when parity
enable bit = “1.”)
Parity enable bit
(Valid in UART mode)
Sleep select bit
(Valid in UART mode)
Bit name
(Note)
(Note)
(Note)
(Note)
7905 Group User’s Manual Rev.1.0
b2 b1 b0
0 : Odd parity
1 : Even parity
0 0 0 : Serial I/O is invalid.
0 0 1 : Clock synchronous serial I/O mode
0 1 0 :
0 1 1 :
1 0 0 : UART mode (Transfer data length = 7 bits)
1 0 1 : UART mode (Transfer data length = 8 bits)
1 1 0 : UART mode (Transfer data length = 9 bits)
1 1 1 : Do not select.
0 : Internal clock
1 : External clock
0 : One stop bit
1 : Two stop bits
0 : Parity disabled
1 : Parity enabled
0 : Sleep mode terminated (Invalid)
1 : Sleep mode selected
(P1 and P8 function as programmable I/O ports.)
Do not select.
30
38
B0
16
16
16
)
)
)
Function
b7 b6 b5 b4 b3 b2 b1 b0
At reset
0
0
0
0
0
0
0
0
R/W
RW
RW
RW
RW
RW
RW
RW
RW