DM9102DEP datasheet(53/70 Pages) DAVICOM

53 / 70 page

Final

Version: DM9102D-DS-F01

May 10, 2006

7.6 Sample Frame Programming Guide:

1. Enter the sample frame access mode:

Set CR6<28:25>=0011

2.Reset the TX/RX FIFO, write pointer to offset 0:

Write 38H to CR13<8:3>

Write 01h to CR14 (reset)

Write 00h to CR14 (clear)

3. Write the sample frame 0-3 data to RX FIFO:

Write 35H to CR13<8:3>

Write xxxxxxxxh to CR14 (Frame1~3 first byte)

Write xxxxxxxxh to CR14 (Frame1~3 second byte)

Repeat write until all frame data written to RX FIFO

4. Reset RX FIFO, write pointer to offset 080H:

Write 38H to CR13<8:3>

Write 40H to CR14 (reset)

Write 00H to CR14 (clear)

5. Write the sample frame 4-7 to RX FIFO:

Write 35H to CR13<8:3>

Write xxxxxxxxh to CR14 (Frame4~7 first byte)

Write xxxxxxxxh to CR14 (Frame4~7 second byte)

Repeat write until all frame data written to RX FIFO

6. Write the sample frame 0-3 mask to TX FIFO:

Write 32H to CR13<8:3>

Write xxxxxxxxh to CR14 (Frame0~3 first mask byte)

Write xxxxxxxxh to CR14 (Frame0~3 second mask byte)

Repeat write until all frame mask which is written to TX

FIFO

7. Reset TX FIFO, write pointer to offset 080H:

Write 38H to CR13<8:3>

Write 20H to CR14 (reset)

Write 00H to CR14 (clear)

8. Write the sample frame 4-7 mask to TX FIFO:

Write 32H to CR13<8:3>

Write xxxxxxxxh to CR14 (Frame4~7 first mask byte)

Write xxxxxxxxh to CR14 (Frame4~7 second mask byte)

Repeat write until all frame mask is written to TX

FIFO

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