HD6417616 RENESAS [Renesas Technology Corp], HD6417616 Datasheet - Page 467

• Manufacturer Part Number: HD6417616
• Description: 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7600 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

10.2.11 FIFO Depth Register (FDR)
FDR specifies the depth (size) of the transmit and receive FIFOs.
Bits 31 to 11—Reserved: These bits are always read as 0. The write value should always be 0.
Bit 10 to 8—Transmit FIFO Depth (TFD): Specifies 256 bytes to 2 kbytes in 256-byte units as the
depth (size) of the transmit FIFO. The setting cannot be changed after transmission/reception has
started.
Bits 10 to 8: TFD2 to TFD0
H'0
H'1
:
H'7
Bits 7 to 3—Reserved: These bits are always read as 0. The write value should always be 0.
Initial value:
Initial value:
Initial value:
R/W:
R/W:
R/W:
Bit:
Bit:
Bit:
31
15
—
—
—
R
R
R
0
0
7
0
Section 10 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Description
256 bytes
512 bytes
2048 bytes
:
30
14
—
—
—
R
R
R
0
0
6
0
29
13
—
—
—
R
R
R
0
0
5
0
. . .
. . .
. . .
. . .
12
—
—
R
R
0
4
0
Rev. 2.00 Mar 09, 2006 page 441 of 906
19
11
—
—
—
R
R
R
0
0
3
0
RFD2
TFD2
R/W
R/W
18
10
—
R
0
0
2
0
REJ09B0292-0200
RFD1
TFD1
R/W
R/W
17
—
R
0
9
0
1
0
(Initial value)
RFD0
TFD0
R/W
R/W
16
—
R
0
8
0
0
0