M16C80 Datasheet, PDF (146/358 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/80 SERIES

M16C/80 Group
16. Serial I/O
UARTi special mode register 2
b7 b6 b5 b4 b3 b2 b1 b0
Symbol
UiSMR2 (i=2 to 4)
Address
033616, 032616, 02F616
When reset
0016
Bit
symbol
Bit name
IICM2 IIC mode select bit 2
CSC Clock synchronous bit
SWC SCL wait output bit
ALS SDA output stop flag
STC UARTi initialize bit
SWC2 SCL wait output bit 2
SDHI SDA output inhibit bit
SHTC Start/stop condition
control bit
Function
RW
0 : NACK/ACK interrupt
DMA source - ACK
Transfer to receive buffer at the rising edge of
last bit of receive clock
Receive interrupt is occurred at the rising
edge of last bit of receive clock
1 : UART transfer/receive interrupt
DMA source - UART receive
Transfer to receive buffer at the falling edge
of last bit of receive clock
Receive interrupt is occurred at the falling
edge of last bit of receive clock
0 : Disabled
1 : Enabled
0 : Disabled
1 : Enabled
0 : Disabled
1 : Enabled
0 : Disabled
1 : Enabled
0 : UARTi clock
1 : 0 output
0 : Enabled
1 : Disabled (high impedance)
Must set to "1" in selecting IIC mode.
Figure 16.11 Serial I/O-related registers (7)
Rev.1.00 Aug. 02, 2005 ^{Page 135} of 329
REJ09B0187-0100