M16C62_M Datasheet, PDF (411/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

UART
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Setting UART2 transmit/receive mode register
b7
b0 _{UARTi transmit/receive mode register [Address 037816]}
0 1 1 0 0 1 0 1 _U2MR
Serial I/O mode select bit
b2 b1 b0
1 0 1 : Transfer data 8 bits long
Must always be “0” in UART mode
Stop bit length select bit
0 : One stop bit
Odd/even parity select bit (Valid when bit 6 = “1”)
Must be “1” (even parity) in direct format
Parity enable bit
1 : Parity enabled
TXD, RXD I/O polarity reverse bit
Usually set to “0”
Setting UART2 transmit/receive control register 0
b7
00 1
b0 _{UART2 transmit/receive control register 0 [Address 037C16]}
U2C0
BRG count source select bit
b1 b0
0 0 : f1 is selected
0 1 : f8 is selected
1 0 : f32 is selected
1 1 : Must not be set
Valid when bit 4 = “0”
Transmit register empty flag
0 : Data present in transmit register (during transmission)
1 : No data present in transmit register (transmission completed)
CTS/RTS disable bit
1 : CTS/RTS function disabled
Must always be “0” in UART mode
Transfer format select bit
Must be “0” (LSB first) in direct format
Setting UART2 transmit/receive control register 1
b7
1001
b0 _{UART2 transmit/receive control register 1 [Address 037D16]}
U2C1
UART2 transmit interrupt cause select bit
1 : Transmission completed (TXEPT = 1)
Must always be “0” in UART mode
Data logic select bit
Must be “0” (no reverse) in direct format
Error signal output enable bit
1 : Output enabled
Continued to the next page
Figure 2.5.15. Set-up procedure of transmission in UART mode (used for SIM interface) (1)
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