554
Figure 16.11 shows an example of the operation for reception.
RDF
FER
ERI interrupt
request generated
by receive error
One frame
Data read and RDF
flag read as 1 then
cleared to 0 by
RXI interrupt handler
RXI interrupt
request
0
1
1
1
0/1
0
1
Parity
bit
Parity
bit
Serial
data
Start
bit
Data
Stop
bit
Start
bit
Data
Stop
bit
Idle (mark)
state
D0 D1
D7
D0 D1
D7 0/1
Figure 16.11 Example of SCIF Receive Operation
(8-Bit Data, Parity, One Stop Bit)
5. When modem control is enabled, the
RTS
signal is output when SCFRDR is empty. When
RTS
is 0, reception is possible. When
RTS
is 1, this indicates that SCFRDR is full and
reception is not possible.
Figure 16.12 shows an example of the operation when modem control is used.
0
0/1
0
1
RTS
Parity bit
Serial
data
RXD
Start
bit
Start
D0 D1 D2
D7
Figure 16.12 Example of Operation Using Modem Control (
RTS
)
Содержание SH7709S
Страница 2: ...Hitachi SuperH RISC engine SH7709S Hardware Manual ADE 602 250 Rev 1 0 09 21 01 Hitachi Ltd ...
Страница 75: ...56 ...
Страница 107: ...88 ...
Страница 125: ...106 ...
Страница 139: ...120 ...
Страница 203: ...184 ...
Страница 245: ...226 ...
Страница 292: ...273 T1 CKIO A25 to A0 CSn RD WR RD D31 to D0 WEn D31 to D0 BS T2 Read Write Figure 10 6 Basic Timing of Basic Interface ...
Страница 323: ...304 Tp TRr TRrw TRrw CKIO CKE CSn RAS3U RAS3L CASU CASL RD WR Figure 10 28 Synchronous DRAM Auto Refresh Timing ...
Страница 411: ...392 ...
Страница 609: ...590 ...
Страница 635: ...616 ...
Страница 663: ...644 ...
Страница 679: ...660 ...