HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 397

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Transmit/Receive Formats: Table 14.10 lists the eight communication formats that can be
selected in asynchronous mode. The format is selected by settings in the serial mode register
(SCSMR).
Table 14.10 Serial Communication Formats (Asynchronous Mode)
[Legend]
START: Start bit
STOP: Stop bit
P:
Clock: An internal clock generated by the on-chip baud rate generator or an external clock input
from the SCK pin can be selected as the SCIF transmit/receive clock. The clock source is selected
by the C/A bit in the serial mode register (SCSMR) and bits CKE1 and CKE0 in the serial control
register (SCSCR) (table 14.9).
When an external clock is input at the SCK pin, it must have a frequency equal to 16 times the
desired bit rate.
When the SCIF operates on an internal clock, it can output a clock signal at the SCK pin. The
frequency of this output clock is equal to 16 times the desired bit rate.
CHR PE STOP
0
0
0
0
1
1
1
1
SCSMR Bits
Parity bit
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
START
START
START
START
START
START
START
START
1
2
Serial Transmit/Receive Format and Frame Length
3
4
Section 14 Serial Communication Interface with FIFO (SCIF)
7-bit data
7-bit data
7-bit data
7-bit data
8-bit data
8-bit data
8-bit data
8-bit data
5
6
7
Rev. 6.00 Jun. 12, 2007 Page 365 of 610
8
STOP
STOP STOP
9
P
P
STOP
STOP STOP
STOP
STOP STOP
10
P
P
REJ09B0131-0600
STOP
STOP STOP
11
12