Section 14 Serial Communication Interface with FIFO (SCIF)
Rev. 2.00 Mar 09, 2006 page 564 of 906
REJ09B0292-0200
14.2.5
Serial Mode Register (SCSMR)
Bit:
7
6
5
4
3
2
1
0
C/
A
CHR/
ICK3
PE/
ICK2
O/
E
/
ICK1
STOP/
ICK0
MP
CKS1
CKS0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
The serial mode register (SCSMR) is an 8-bit register used to set the SCIF’s serial communication
format and select the baud rate generator clock source. In IrDA communication mode, it is used to
select the output pulse width.
SCSMR can be read or written to by the CPU at all times.
SCSMR is initialized to H'00 by a reset, by the module standby function, and in standby mode.
Bit 7—Communication Mode (C/
A
): Selects asynchronous mode or synchronous mode as the
SCIF operating mode. In IrDA communication mode, this bit must be cleared to 0.
Bit 7: C/
A
A
A
A
Description
0
Asynchronous mode
(Initial value)
1
Synchronous mode
Bit 6—Character Length (CHR)/IrDA Clock Select 3 (ICK3): Selects 7 or 8 bits as the data length
in asynchronous mode. In synchronous mode, a fixed data length of 8 bits is used regardless of the
CHR setting,
Bit 6: CHR
Description
0
8-bit data
(Initial value)
1
7-bit data
*
Note:
*
When 7-bit data is selected, the MSB (bit 7) of the transmit FIFO data register (SCFTDR) is
not transmitted.
In IrDA communication mode, bit 6 is the IrDA clock select 3 (ICK3) bit, enabling appropriate
clock pulses to be generated according to its setting. See Pulse Width Selection, in section 14.3.6,
Operation in IrDA Mode, for details.
Summary of Contents for SH7616
Page 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Page 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Page 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Page 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Page 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Page 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Page 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Page 935: ...SH7616 Hardware Manual ...