HD6413007F20 Datasheet, PDF (463/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

13. Serial Communication Interface
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.
For serial communication interface (SMIF bit in SCMR cleared to 0): Selects whether the SCI
operates in asynchronous or synchronous mode.
Bit 7
C/A
0
1
Description
Asynchronous mode
Synchronous mode
(Initial value)
For smart card interface (SMIF bit in SCMR set to 1): Selects GSM mode for the smart card
interface.
Bit 7
GM
Description
0
The TEND flag is set 12.5 etu after the start bit
1
The TEND flag is set 11.0 etu after the start bit
Note: etu: Elementary time unit (time required to transmit one bit)
(Initial value)
Bit 6⎯Character Length (CHR): Selects 7-bit or 8-bits data length in asynchronous mode. In
synchronous mode, the data length is 8 bits regardless of the CHR setting,
Bit 6
CHR
Description
0
8-bit data
1
7-bit data*
Note: * When 7-bit data is selected, the MSB (bit 7) of TDR is not transmitted.
(Initial value)
Rev.5.00 Sep. 12, 2007 Page 433 of 764
REJ09B0396-0500