Section 10 Ethernet Controller Direct Memory Access Controller (E-DMAC)
Rev. 2.00 Mar 09, 2006 page 421 of 906
REJ09B0292-0200
10.2
Register Descriptions
10.2.1
E-DMAC Mode Register (EDMR)
The E-DMAC mode register specifies the operating mode of the E-DMAC. The settings in this
register are normally made in the initialization process following a reset.
Note: Operating mode settings must not be changed while the transmitter and receiver are
enabled. To change the operating mode, first return the EtherC and E-DMAC modules to
their initial state by means of the software reset bit (SWR) in this register, then make new
settings.
Bit:
31
30
29
. . .
11
10
9
8
—
—
—
. . .
—
—
—
—
Initial value:
0
0
0
. . .
0
0
0
0
R/W:
R
R
R
. . .
R
R
R
R
Bit:
7
6
5
4
3
2
1
0
—
—
DL1
DL0
—
—
—
SWR
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R/W
R/W
R
R
R
R/W
Bits 31 to 6—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 5 and 4—Descriptor Length 1, 0 (DL1, DL0): These bits specify the descriptor length,
Bit 5:
DL1
Bit 4:
DL0
Description
0
0
16 bytes
(Initial value)
1
32 bytes
1
0
64 bytes
1
Reserved (setting prohibited)
Bits 3 to 1—Reserved: These bits are always read as 0. The write value should always be 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 ...