M16C6KA_15 Datasheet, PDF (88/270 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER Description

M16C/6KA Group
Serial I/O
(UART1)
RxD1
RxD polarity
switching circuit
Clock source selection
f1
Bit rate generator
f8
Internal (address 03A916)
f32
1 / (n1+1)
External
UART reception
1/16
Clock synchronous type
Reception
control circuit
UART transmission
1/16
Clock synchronous type
Clock synchronous type
(when internal clock is selected)
1/2
Transmission
control circuit
CLK1
CTS1 / RTS1
/ CLKS1
CLK
polarity
switching
circuit
Clock synchronous type
(when internal clock is selected)
Clock synchronous type
(when external clock is
selected)
Clock output pin
select switch
CTS/RTS disabled
VCC
CTS/RTS disabled
RTS1
CTS1
Receive
clock
Transmit
clock
Transmit/
receive
unit
TxD
polarity
switching
circuit
TxD1
n1 : Values set to UART1 bit rate generator (BRG1)
Fig.GA-1 Block diagram of UART1
Rev.1.00 Jul 16, 2004 page 86 of 266
REJ03B0100-0100Z