M16C80 Datasheet, PDF (138/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
16. 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 036616
Address 036716
Address 036E16
Address 036F16
2SP
PAR
enabled
UART
SP
SP
PAR
1SP
PAR
Clock
disabled 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 036216
Address 036316
Address 036A16
Address 036B16
UART (7 bits)
UART (8 bits)
Clock synchronous
type
UART (7 bits)
UARTi transmit register
SP: Stop bit
PAR: Parity bit
TxDi
Figure 16.3 Block diagram of UARTi (i = 0, 1) transmit/receive unit
Rev.1.00 Aug. 02, 2005 ^{Page 127} of 329
REJ09B0187-0100