M16C26A Datasheet, PDF (151/352 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/Tiny SERIES

M16C/26A Group (M16C/26A, M16C/26B, M16C/26T)
13. Serial I/O
RxDi
1SP
STPS=0
SP
SP
2SP ^STPS=1
PAR
disabled
Clock
synchronous
type
PRYE=0 0
PAR
PAR PRYE=1
enabled
1
UART
SMD2 to SMD0
Clock
synchronous type
UART (7 bits)
UART (8 bits)
UART (7 bits)
0
0
1
UART (9 bits)
1
Clock
synchronous type
UART (8 bits)
UART (9 bits)
UARTi receive register
0 0 0 0 0 0 0 D8
D7 D6 D5 D4 D3 D2 D1 D0
UARTi receive
buffer register
MSB/LSB conversion circuit
Data bus high-order bits
Address 03A616
Address 03A716
Address 03AE16
Address 03AF16
Data bus low-order bits
MSB/LSB conversion circuit
D8
D7 D6 D5 D4 D3 D2 D1 D0 UARTiÜtransmit
buffer register
UART (8 bits)
UART (9 bits)
Address 03A216
Address 03A316
Address 03AA16
Address 03AB16
2SP STPS=1
SMD2 to SMD0
PAR
UART
enabled _{PRYE=1 1}
UART (9 bits)
1
Clock synchronous
type
1
SP
SP
PAR
STPS=0
1SP
PRYE=0 0
PAR
disabled
0
Clock
synchronous
type
0
0
UART (7 bits)
UART (8 bits)
UART (7 bits)
Clock synchronous
type
UARTi transmit register
SP: Stop bit
PAR: Parity bit
TxDi
SMD2 to SMD0, STPS, PRYE, IOPOL, CKDIR : Bit in the UiMR register
Figure 13.1.2. Block diagram of UARTi (i = 0, 1) transmit/receive unit
Rev. 2.00 Feb.15, 2007 ^{page 134} of 329
REJ09B0202-0200