21. Serial Communication Interface with FIFO (SCIF)
Rev.1.00 Jan. 10, 2008 Page 1062 of 1658
REJ09B0261-0100
21.3.9
FIFO Control Register n (SCFCR)
SCFCR is a register that performs data count resetting and trigger data number setting for transmit
and receive FIFO registers, and also contains a loopback test enable bit.
SCFCR can always be read from and written to by the CPU.
0
1
2
3
4
5
6
7
8
9
10
11
12
13
15
14
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
LOOP
RFCL
TFCL
MCE
*
1
TTRG0
TTRG1
RTRG0
RTRG1
RST
RG2
*
1
RST
RG1
*
1
RST
RG0
*
1
⎯
⎯
⎯
⎯
⎯
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
BIt:
Initial value:
R/W:
Bit Bit
Name
Initial
Value R/W
Description
15 to 11 —
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
10
9
8
RSTRG2
*
1
RSTRG1
*
1
RSTRG0
*
1
0
0
0
R/W
R/W
R/W
SCIF_RTS
Output Active Trigger
The
SCIF_RTS
signal becomes high when the number
of receive data stored in SCFRDR exceeds the trigger
setting count shown below.
000:63
001:1
010:8
011:16
100:32
101:48
110:54
111:60
7
6
RTRG1
RTRG0
0
0
R/W
R/W
Receive FIFO Data Count Trigger
These bits are used to set the number of receive data
bytes that sets the RDF flag in SCFSR.
The RDF flag is set when the number of receive data
bytes in SCFRDR is equal to or greater than the trigger
setting count shown below.
00:1
01:16
10:32
11:48
Содержание SH7781
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Страница 762: ...14 Direct Memory Access Controller DMAC Rev 1 00 Jan 10 2008 Page 732 of 1658 REJ09B0261 0100 ...
Страница 788: ...15 Clock Pulse Generator CPG Rev 1 00 Jan 10 2008 Page 758 of 1658 REJ09B0261 0100 ...
Страница 828: ...17 Power Down Mode Rev 1 00 Jan 10 2008 Page 798 of 1658 REJ09B0261 0100 ...
Страница 846: ...18 Timer Unit TMU Rev 1 00 Jan 10 2008 Page 816 of 1658 REJ09B0261 0100 ...
Страница 1292: ...24 Multimedia Card Interface MMCIF Rev 1 00 Jan 10 2008 Page 1262 of 1658 REJ09B0261 0100 ...
Страница 1326: ...25 Audio Codec Interface HAC Rev 1 00 Jan 10 2008 Page 1296 of 1658 REJ09B0261 0100 ...
Страница 1482: ...28 General Purpose I O Ports GPIO Rev 1 00 Jan 10 2008 Page 1452 of 1658 REJ09B0261 0100 ...
Страница 1538: ...30 User Debugging Interface H UDI Rev 1 00 Jan 10 2008 Page 1508 of 1658 REJ09B0261 0100 ...
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