HD64F3437TF16 Datasheet, PDF (661/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

SMR—Serial Mode Register
H'88
SCI1
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
C/A
CHR
PE
O/E STOP MP CKS1 CKS0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Clock Select
0 0 ø clock
0 1 ø_P/4 clock
1 0 ø_P/16 clock
1 1 ø_P/64 clock
Multiprocessor Mode
0 Multiprocessor function disabled
1 Multiprocessor format selected
Stop Bit Length
0 One stop bit
1 Two stop bits
Parity Mode
0 Even parity
1 Odd parity
Parity Enable
0 Transmit: No parity bit added.
Receive: Parity bit not checked.
1 Transmit: Parity bit added.
Receive: Parity bit checked.
Character Length
0 8-bit data length
1 7-bit data length
Communication Mode
0 Asynchronous
1 Synchronous
632