HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 372

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

12. Serial Communication Interface
12.2.5
SMR is an 8-bit register that specifies the SCI's serial communication format and selects the clock
source for the baud rate generator.
The CPU can always read and write SMR. SMR is initialized to H'00 by a reset and in standby
mode.
Bit 7—Communication Mode (C/A)/GSM Mode (GM): The function of this bit differs for the
normal serial communication interface and for the smart card interface. Its function is switched
with the SMIF bit in SCMR.
Rev.4.00 Aug. 20, 2007 Page 328 of 638
REJ09B0395-0400
Bit
Initial value
Read/Write
Serial Mode Register (SMR)
C/A
R/W
7
0
Communication mode
Selects asynchronous or synchronous mode
CHR
R/W
6
0
Character length
Selects character length in asynchronous mode
R/W
PE
5
0
Parity enable
Selects whether a parity bit is added
O/E
R/W
4
0
Parity mode
Selects even or odd parity
STOP
R/W
3
0
Stop bit length
Selects the stop bit length
R/W
MP
2
0
Multiprocessor mode
Selects the multiprocessor
function
CKS1
R/W
1
0
Clock select 1/0
These bits select the
baud rate generator's
clock source
CKS0
R/W
0
0