HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 406

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

Section 14 Serial Communication Interface with FIFO (SCIF)
5. When modem control is enabled, the RTS signal is output depending on the empty status of
Rev. 6.00 Jun. 12, 2007 Page 374 of 610
REJ09B0131-0600
Figure 14.9 shows an example of the operation for reception.
SCFRDR. When RTS is 0, reception is possible. When RTS is 1, this indicates that the
SCFRDR is full and no extra data can be received. (Only for channel 0 and channel 1)
Figure 14.10 shows an example of the operation when modem control is used.
Serial
data
RDF
FER
Serial data
RTS
RxD
Figure 14.10 Example of Operation Using Modem Control (RTS)
1
Start
bit
0
Start
bit
0
D0
Figure 14.9 Example of SCIF Receive Operation
D0
D1 D2
One frame
D1
(8-Bit Data, Parity, One Stop Bit)
Data
D7 0/1
D7
RXI interrupt
request
Parity
bit
Parity
bit
0/1
Stop
bit
1
Stop
bit
1
Start
bit
0
Data read and RDF flag
read as 1 then cleared to
0 by RXI interrupt handler
D0
D1
Start
bit
Data
0
D0
D7
Parity
bit
D1
0/1
Stop
bit
ERI interrupt request
generated by receive
error
0
D7 0/1
0/1