Section 29 Serial I/O with FIFO (SIOF)
Rev. 1.00 Oct. 01, 2007 Page 1211 of 1956
REJ09B0256-0100
29.3.10 FIFO Control Register (SIFCTR)
SIFCTR is a 16-bit readable/writable register that indicates the area available for the
transmit/receive FIFO transfer.
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
1
0
0
0
RFUA[4:0]
RFWM[2:0]
TFUA[4:0]
TFWM[2:0]
R
R
R
R
R
R/W
R/W
R/W
R
R
R
R
R
R/W
R/W
R/W
BIt:
Initial value:
R/W:
Bit Bit
Name
Initial
Value R/W Description
15 to 13 TFWM[2:0] 000
R/W
Transmit FIFO Watermark
000: Issue a transfer request when 16 stages of the
transmit FIFO are empty.
001: Setting prohibited
010: Setting prohibited
011: Setting prohibited
100: Issue a transfer request when 12 or more stages
of the transmit FIFO are empty.
101: Issue a transfer request when 8 or more stages of
the transmit FIFO are empty.
110: Issue a transfer request when 4 or more stages of
the transmit FIFO are empty.
111: Issue a transfer request when 1 or more stages of
transmit FIFO are empty.
•
A transfer request to the transmit FIFO is issued by
the TDREQE bit in SISTR.
•
The transmit FIFO is always used as 16 stages of
the FIFO regardless of these bit settings.
Note:
*
When the transmit data is DMA-transferred with
the TDMAE bit in the SIIER register set to 1,
the TFWM[2:0] bits should not be set to B'111.
If these bits are set to B'111, a transmit FIFO
overflow may occur.
12 to 8
TFUA[4:0]
10000
R
Transmit FIFO Usable Area
Indicate the number of words that can be transferred by
the CPU or DMAC as B'00000 (full) to B'10000 (empty).
Содержание SH7763
Страница 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
Страница 2025: ......
Страница 2026: ...SH7763 Hardware Manual ...