Section 10 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Rev. 2.00 Mar 09, 2006 page 439 of 906
REJ09B0292-0200
10.2.10 Transmit FIFO Threshold Register (TFTR)
TFTR specifies the transmit FIFO threshold at which the first transmission is started. The actual
threshold is 4 times the set value. The EtherC starts transmission when the amount of data in the
transmit FIFO exceeds the number of bytes specified by this register, when the transmit FIFO is
full, or when 1-frame write is executed.
Note: When setting this register, do so in the transmission-halt state.
Bit:
31
30
29
. . .
19
18
17
16
—
—
—
. . .
—
—
—
—
Initial value:
0
0
0
. . .
0
0
0
0
R/W:
R
R
R
. . .
R
R
R
R
Bit:
15
14
13
12
11
10
9
8
—
—
—
—
—
TFT10
TFT9
TFT8
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R/W
R/W
R/W
Bit:
7
6
5
4
3
2
1
0
TFT7
TFT6
TFT5
TFT4
TFT3
TFT2
TFT1
TFT0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 31 to 11—Reserved: These bits should only be written with 0.
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...