Motorola SE955 Integration Manual page 206

LED_ON
Description: Activate LED output
Packet Format
Length Opcode
0x05 0xE7
Field Descriptions
Field Name
Length Length of message (not including
checksum)
Opcode 0xE7
Message Source 4 = Host
Status Bit 0: Retransmit
Bit 1-7: Unused
LED Selection Bit 0 - 7: LED bit numbers to turn
on
Checksum 2's complement sum of message
contents excluding checksum
The host sends this message to turn on the decode LED.
Host Requirements
None.
Decoder Requirements
The decoder turns on the decode LED.
Message Source
0x04
Format
Simple Serial Interface 10 - 19
Status LED Selection
0x01
Size
1 Byte Length field
1 Byte Identifies this Opcode type
1 Byte Identifies where the message is coming
from
1 Byte Identifies the transmission status
Unused bits must be set to 0
1 Byte Bit 0 = decode LED
All other bits should be set to 0
2 Bytes Checksum of message
Checksum
Description