Philips BDS4621 user manual Packet Header, Ack

			User Manual BDS4621
		a). 1st Packet to Target (Philips PDP) structure
		like as below (Table 1)
	Byte0	0xBE	Magic
	Byte1	0xEF	Number
Packet Header	Byte2	0x01	Packet Type
	Byte3	0x05	Packet size (Low)
	Byte4	0x00	Packet size (High)
	Byte5	0xD1	CRC (Low)
	Byte6	0xFA	CRC (High)
	Byte7	0x01	System Info Type
	Byte8	0x02	Version
Packet Payload	Byte9	0x00	Number
	Byte10	0x00	Object ID
	Byte11	0x00	Level
		Table 1
		b). The Ack of Packet to Host (PC) (Table 2)
Ack	Byte0	0x1E	PAK
	Byte1	0xBE	Magic
	Byte2	0xEF	Number
Packet Header	Byte3	0x01	Packet Type
	Byte4	0x05	Packet size (Low)
	Byte5	0x00	Packet size (High)
	Byte6	0xD1	CRC (Low)
	Byte7	0xFA	CRC (High)
	Byte8	0x01	System Info Type
Packet Payload	Byte9	0x02	Version
	Byte10	0x00	Number
	Byte11	0x00	Object ID
	Byte12	0x00	Leve
		Table 2
		PAK means that PC will follow the received
		Packet data
		c). Packet same as 1st Packet (Table 1)
		d). Same as Ack (Table 2)
		e). Packet to Target (Philips PDP) structure (Table 3)
	Byte0	0xBE	Magic
	Byte1	0xEF	Number
Packet Header	Byte2	0x01	Packet Type
	Byte3	0x05	Packet size (Low)
	Byte4	0x00	Packet size (High)
	Byte5	0xA9	CRC (Low)
	Byte6	0xC6	CRC (High)
	Byte7	0x00	System Info Type
Packet Payload	Byte8	0x00	Version
	Byte 9	0x00	Number
	Byte10	0x00	Object ID
	Byte11	0x00	Level

Table 3

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