M16C6KA_15 Datasheet, PDF (89/270 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description

M16C/6KA Group
Serial I/O
RXD1
RxD data
reverse circuit
No reverse
Reverse
1SP
SP
SP
2SP
PAR
PAR
disabled
Clock
synchronous
type
PAR
enabled
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)
UART1 receive register
0 0 0 0 0 0 0 D8
D7 D6 D5 D4 D3 D2 D1 D0
Logic reverse circuit + MSB/LSB conversion circuit
Data bus high-order bits
UART1 receive
buffer register
Address 03AE16
Address 03AF16
2SP
PAR
enabled _UART
SP
SP
PAR
1SP
PAR
disabled
Clock
synchronous
type
“0”
Data bus low-order bits
Logic reverse circuit + MSB/LSB conversion circuit
D8
UART
(9 bits)
D7 D6 D5 D4 D3 D2 D1 D0
UART
(8 bits)
UART
(9 bits)
Clock
synchronous type
UART1 transmit
buffer register
Address 03AA16
Address 03AB16
UART
(7 bits)
UART
(8 bits)
Clock
synchronous type
UART(7 bits)
UART1 transmit register
Not reverse
TxD data
reverse circuit
Reverse
TXD1
SP: Stop bit
PAR: Parity bit
Fig.GA-2 Block diagram of UART1 transmit/receive unit
Rev.1.00 Jul 16, 2004 page 87 of 266
REJ03B0100-0100Z