Section 23 Gigabit Ethernet Controller (GETHER)
Rev. 1.00 Oct. 01, 2007 Page 958 of 1956
REJ09B0256-0100
Figure 23.8 shows an example of transmission flow.
This LSI + memory
Transmission flowchart
E-DMAC
Transmit FIFO
E-MAC
Ethernet
GMII/MII/RMIi
GETHER
initalization
Transmit
descriptor and
transmit buffer
setting
Transmit data transfer
Transmit data transfer
Frame transmission
Transmit descriptor
write-back
Start of transmission
Transmit descriptor read
Transmit descriptor
read
Transmit descriptor
write-back
Transmission
completed
[Legend]
GETHER initialization: Executes a software reset with the SWR bit in EDMR set to 1.
Transmit descriptor and transmit setting: Setes transmit descriptors and transmit buffer, and sets E-MAC
Start of transmission: Occurs when 1 is written to the TE bit in ECMR and 11 is written to the TR bit in EDTRR.
Transmit descriptor read: The E-DMAC reads a transmit descriptor.
Transmit data transfer : Writes transmit dara to the transmit FIFO by using DMA transfer by the E-DMAC
Transmit descriptor write-back: The E-DMAC writes 0 to the TACT bit and writes the transmit status to the transmit descriptor.
and E-DMAC registeers, then writes 11 to the TE bit in ECMR
and the TR bit in EDTRR.
Figure 23.8 Sample Transmission Flowchart (Single-Frame/Two-Description)
Summary of Contents for SH7763
Page 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Page 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Page 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Page 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Page 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Page 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Page 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Page 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Page 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Page 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Page 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Page 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Page 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Page 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Page 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Page 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Page 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Page 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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