M16C26 Datasheet, PDF (141/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

Udenvdeelropment
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative
Clock Asynchronous Serial I/O (UART) Mode
and
subject to change.
SINGLE-CHIP 16-BIT
M16C/26 Group
CMOS MICROCOMPUTER
(a) Function for switching serial data logic (UART2)
When the data logic select bit (bit 6 of address 037D16) is assigned 1, data is inverted in writing to
the transmission buffer register or reading the reception buffer register. Figure 1.15.22 shows the
example of timing for switching serial data logic.
When LSB first, parity enabled, one stop bit
Transfer clock ^H
L
TxD2 ^H
(no reverse) _L
TxD2 ^H
(reverse) _L
ST D0 D1 D2 D3 D4 D5 D6 D7 P SP
ST D0 D1 D2 D3 D4 D5 D6 D7 P SP
ST : Start bit
P : Even parity
SP : Stop bit
Figure 1.15.22. Timing for switching serial data logic (UART2)
Renesas Technology Corp.
135