AX88796BLF datasheet(25/82 Pages) ASIX

25 / 82 page

ASIX ELECTRONICS CORPORATION

AX88796BLF / AX88796BLI

For Example.

A Ping packet is configured as a Wakeup frame and AX88196B MAC address is 00 A0 0C C4 7D 69.

00 A0 0C C4 7D 69 00 0E C6 12 34 56 08 00 45 00

00 3C 01 8C 00 00 80 01 27 1E C0 09 C9 02 C0 09

C9 01 08 00 47 5C 05 00 01 00 61 62 63 64 65 66

67 68 69 6A 6B 6C 6D 6E 6F 70 71 72 73 74 75 76

77 61 62 63 64 65 66 67 68 69 CRC (4 bytes)

Host configure Wakeup frame registers sequences

// Go to gape3

Write CR(Offset 0h) C2h

; page3

// Set Byte Mask 0 = 00 40 08 07

Write WFBM0 (Page3, Offset 01H) 07h

; WFBM0 = 07 00 00 00h

Write WFBM0 (Page3, Offset 01H) 08h

; WFBM0 = 08 07 00 00h

Write WFBM0 (Page3, Offset 01H) 40h

; WFBM0 = 40 08 07 00h

Write WFBM0 (Page3, Offset 01H) 00h

; WFBM0 = 00 40 08 07h

// Set {Wakeup Frame 1 CRC, Wakeup Frame 0 CRC} = 00 00 2B 42h

Write WF10CRC (Offset 05H) 42h

; WF10CRC = 42 00 00 00h

Write WF10CRC (Offset 05H) 2Bh

; WF10CRC = 2B 42 00 00h

Write WF10CRC (Offset 05H) 00h

; WF10CRC = 00 2B 42 00h

Write WF10CRC (Offset 05H) 00h

; WF10CRC = 00 00 2B 42h

// Set {Offset 3 2 1 0} = 00 00 00 06h

Write WFOFST (Offset 07H) 06h

; WFOFST = 06 00 00 00h

Write WFOFST (Offset 07H) 00h

; WFOFST = 00 06 00 00h

Write WFOFST (Offset 07H) 00h

; WFOFST = 00 00 06 00h

Write WFOFST (Offset 07H) 00h

; WFOFST = 00 00 00 06h (Offset = 6*2 = 12)

// Set {Last Byte 3 2 1 0} = 00 00 00 08h

Write WFLB (Page3, Offset 08H) 08h

; {Last Byte 3 2 1 0} = 08 00 00 00h

Write WFLB (Page3, Offset 08H) 00h

; {Last Byte 3 2 1 0} = 00 08 00 00h

Write WFLB (Page3, Offset 08H) 00h

; {Last Byte 3 2 1 0} = 00 00 08 00h

Write WFLB (Page3, Offset 08H) 00h

; {Last Byte 3 2 1 0} = 00 00 00 08h

// Set {Cascade, Command 3 2 1 0} = 00 00 00 03h

Write WFCMD (Offset 09H) 03h

; WFCMD = 03 00 00 00h

Write WFCMD (Offset 09H) 00h

; WFCMD = 00 03 00 00h

Write WFCMD (Offset 09H) 00h

; WFCMD = 00 00 03 00h

Write WFCMD (Offset 09H) 00h

; WFCMD = 00 00 00 03h (enabled wake-up frame filter 0, and DA

match is required)

// Set PME and IRQ pin I/O Buffer Type (Please Ref. Datasheet Offset 15 descriptions)

Write BTCR (Offset 15H)

;

// Host enables wakeup frame detection then enter D1 sleep

Write WUCSR (Page3, Offset 0AH) 02h

; (Wakeup frame enable)

Write PMR (Offset 0BH) 01h

; (Enter D1 Sleep mode)

4.3.2 Magic Packet frame

AX88796B checks frame for 16 repetitions of the MAC address without any breaks or interruptions. The 16

repetitions may be anywhere in the frame but must be preceded by the synchronization stream

48’hFF_FF_FF_FF_FF_FF pattern. If the MAC address of a node is 00h 11h 22h 33h 44h 55h, then AX88796B

scans for the following data sequence in an Ethernet frame.

Destination Address (6 byte) Source Address (6 byte) . . . . . . . . . FF

. . . . . . . . . CRC (4 byte)

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