TMP91C824
91C824-132
3.9.3 SFR
7
6
5
4
3
2
1
0
Bit symbol
TB8
CTSE
RXE
WU
SM1
SM0
SC1
SC0
Read/Write
R/W
After Reset
0
0
0
0
0
0
0
0
Function
Transfer
data bit 8
Hand shake
0: CTS
disable
1: CTS
enable
Receive
function
0: Receive
disable
1: Receive
enable
Wake up
function
0: disable
1: enable
Serial Transmission
Mode
00: I/O interface Mode
01: 7-bit UART Mode
10: 8-bit UART Mode
11: 9-bit UART Mode
Serial transmission clock
(UART)
00: TMRA0 trigger
01: Baud rate
generator
10: Internal clock f
SYS
11: External clcok
(SCLK0 input)
Serial transmission clock source (UART)
00
Timer TMRA0 match detect signal
01
Baud rate generator
10
Internal clock f
SYS
11
External clock (SCLK0 input)
Note: The clock selection for the I/O
interface mode is controlled by the
serial bontrol register (SC0CR).
Serial Transmission Mode
00
I/O Interface Mode
01
7-bit mode
10
8-bit mode
11
UART mode
9-bit mode
Wake-up function
9-Bit UART
Other Modes
0
Interrupt generated when
data is received
1
Interrupt generated only
when RB8 = 1
0
Receive disabled
1
Receive enabled
Receiving Function
0
Disabled (always transferable)
1
Enabled
Handshake function (CTS pin) Enable
Transmission data bit 8
Don’t care
SC0MOD0
(0202H)
Figure 3.9.7 Serial Mode Control Register (SIO0, SC0MOD0)