Philips BDS4621-27 - Manual (Page 49)

a). 1st Packet to Target (Philips PDP) structure
like as below (Table 1)
Byte0 0xBE Magic
Byte1 0xEF Number
Byte2 0x01 Packet Type
Packet Header 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
Byte3 0x01 Packet Type
Packet Header Byte4 0x05 Packet size (Low)
Byte5 0x00 Packet size (High)
Byte6 0xD1 CRC (Low)
Byte7 0xFA CRC (High)
Byte8 0x01 System Info Type
Byte9 0x02 Version
Packet Payload 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
Byte2 0x01 Packet Type
Packet Header Byte3 0x05 Packet size (Low)
Byte4 0x00 Packet size (High)
Byte5 0xA9 CRC (Low)
Byte6 0xC6 CRC (High)
Byte7 0x00 System Info Type
Byte8 0x00 Version
Packet Payload Byte 9 0x00 Number
Byte10 0x00 Object ID
Byte11 0x00 Level
Table 3
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User Manual BDS4621
BDS4621_EN.qxd 13-12-2004 10:38 Pagina 49