M16C6K9 Datasheet, PDF (99/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Serial I/O
RxDi
1SP
SP
SP
2SP
PAR
PAR
disabled
PAR
enabled
Clock
synchronous
type
UART
Clock
synchronous type
UART (7 bits)
UART (8 bits)
UART (7 bits)
UART (9 bits)
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
2SP
PAR enabled
UART
SP
SP
PAR
1SP
PAR
disabled
Clock
synchronous
type
“0”
Data bus low-order bits
MSB/LSB conversion circuit
D8
D7 D6 D5 D4 D3 D2 D1 D0
UART (9 bits)
UART (8 bits)
UART (9 bits)
Clock synchronous
type
UARTi transmit
buffer register
Address 03A216
Address 03A316
Address 03AA16
Address 03AB16
UART (7 bits)
UART (8 bits)
Clock synchronous
type
UART (7 bits)
UARTi transmit register
SP: Stop bit
PAR: Parity bit
TxDi
Fig.GA-2 Block diagram of UARTi (i = 0, 1) transmit/receive unit
Rev.1.00 Jun 06, 2003 page 99 of 290