Maxim-integrated High-Speed Microcontroller Users Guide: Network Mi Manual do Utilizador descarregar pdf (Página 188)

High-Speed Microcontroller User’s

Guide: Network Microcontroller

Supplement

188

1. CSR write register (CSRA = 28h, CSRD = 00_00_00_73h) Filter 0 byte mask

2. CSR write register (CSRA = 28h, CSRD = xx_xx_xx_xxh) don’t care

3. CSR write register (CSRA = 28h, CSRD = xx_xx_xx_xxh) don’t care

CSR write register (CSRA = 28h, CSRD = xx_xx_xx_xxh) don’t care

5. CSR write register (CSRA = 28h, CSRD = x0_x0_x0_x1h) Filter 0–enabled, unicast only

6. CSR write register (CSRA = 28h, CSRD = xx_xx_xx_0Ch) Filter 0 offset = 12

7. CSR write register (CSRA = 28h, CSRD = xx_xx_[CRC-16]h) Filter 0 CRC-16

8. CSR write register (CSRA = 28h, CSRD = xx_xx_xx_xxh) don’

t care

Figure 22-14. Wake-Up Frame Filter 0 Programming Example

THERNET FRAME

Preamble SFD Destination Address Source Address

Byte0 Byte1

Byte2 Byte3 Byte4 Byte5 Byte6...

CRC-32

CRC-16 OF BYTES SELECTED BY FILTER

CRC-16 generator

polynomial

ilter 0 offset = 0Ch (12)

0 1 4 5 6

ilter 0 Byte Mask = 00_00_00_73h

= Select bytes 0, 1, 4, 5, 6

Maxim Integrated

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Maxim-integrated High-Speed Microcontroller Users Guide: Network Mi Manual do Utilizador Página 188