Section 23 Gigabit Ethernet Controller (GETHER)
Rev. 1.00 Oct. 01, 2007 Page 904 of 1956
REJ09B0256-0100
23.3.69 E-DMAC Mode Register (EDMR)
EDMR is a 32-bit readable/writable register that specifies E-DMAC resetting and the
transmit/receive descriptor length. This register is to be set before the transmitting or receiving
function is enabled (before the TR bit in EDTRR or the RR bit in EDRRR is set to 1). However,
the SWRR and SWRT bits can be written to even after the transmitting or receiving function is
enabled. If a software reset is executed with this register during data transmission, abnormal data
may be transmitted on the line. Execute a software reset with this register before specifying the
transmit/receive descriptor length or modifying the settings of TDLAR, RDLAR, and so forth, the
setting of ECMR (E-MAC mode register), and the settings of registers related to the E-DMAC and
E-MAC operation.
To execute a software reset with this register, 1 must be written to both the SWRT and SWRR bits
simultaneously. Writing 1 to the SWRT and SWRR bits initializes the E-MAC registers and E-
DMAC registers, except for TDLAR, RDLAR, and RMFCR of the E-DMAC. The TSU registers
(registers whose names are prefixed with TSU_) are not initialized. Writing 1 to the SWRT and
SWRR bits in EDMR0 initializes the registers related to the E-DMAC0 and E-MAC-0, whereas,
writing 1 to the SWRT and SWRR bits in EDMR1 initializes the registers related to the E-
DMAC1 and E-MAC-1. When relay operations are enabled in the TSU by specifying the relay
enable register (port 0 to 1) (TSU_FWEN0) and relay enable register (port 1 to 0) (TSU_FWEN1),
a software reset should not be performed using this register. Note that during the period a software
reset is issued (for 64 cycles of the internal bus clock Bck), accesses to all Ethernet-related
registers are prohibited.
16
17
18
19
20
21
22
23
24
25
26
27
28
29
31
30
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
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
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
Bit:
Initial value:
R/W:
Bit:
Initial value:
R/W:
− −
− −
− −
− −
− −
− − − −
−
DE
DL[1:0]
− −
− −
− −
− −
− −
− −
SWRT SWRR
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 ...