iPort IW-2, Instruction Manual

Page: 6 / 18

10. GetRepeat
0x3C 0x13 GetRepeat
Direction: Controller —> iPort
Description: Requests the current iPod track repeat state.
Packet Structure:
Byte Number Value Meaning
0x00 0x2A Start character
0x01 0x49 Device type (iPort)
0x02 0x00 Packet Length High Byte
0x03 0x03 Packet Length Low Byte
0x04 0x38 Packet Command Type
0x05 0x3C Packet Command High Byte
0x06 0x13 Packet Command Low Byte
0x07 0x2D Checksum
11. PlayCurrentSelection
0x3C 0x14 PlayCurrentSelection
Direction: Controller —> iPort
Description: Requests playback of the currently selected songs
or list of songs. The currently selected songs will be
placed in the now playing playlist. Finally, the song
record index is passed to the iPod to play.
Packet Structure:
Byte Number Value Meaning
0x00 0x2A Start character
0x01 0x49 Device type (iPort)
0x02 0x00 Packet Length High Byte
0x03 0x07 Packet Length Low Byte
0x04 0x38 Packet Command Type
0x05 0x3C Packet Command High Byte
0x06 0x14 Packet Command Low Byte
0x08 0xNN Selection Song Record Index (byte 4)
0x09 0xNN Selection Song Record Index (byte 3)
0x0A 0xNN Selection Song Record Index (byte 2)
0x0B 0xNN Selection Song Record Index (byte 1)
0x0C 0xNN Checksum
12. PlayControl
0x3C 0x15 PlayControl
Direction: Controller —> iPort
Description: Sets the new play state of the iPod.
Play Control Command Code:
Code Category Type
0x01 Toggle Play/Pause
0x02 Stop
0x03 Next Track
0x04 Previous Track
0x05 StartFF
0x06 StartRew
0x07 EndFFRew
Packet Structure:
Byte Number Value Meaning
0x00 0x2A Start character
0x01 0x49 Device type (iPort)
0x02 0x00 Packet Length High Byte
0x03 0x04 Packet Length Low Byte
0x04 0x38 Packet Command Type
0x05 0x3C Packet Command High Byte
0x06 0x15 Packet Command Low Byte
0x07 0xNN Play Control Command Code
0x08 0xNN Checksum
13. GetIndexedPlayingSongAlbumName
0x3C 0x18 GetIndexedPlayingSongAlbumName
Direction: Controller —> iPort
Description: Requests the album name of the indexed playing
song from the iPod.
NOTE: iPod will respond with an ACK including the
specific error status if the received command length or
playing song index is invalid.
6
Instruction Manual
iPort RS-232 Programming
iPort
Command
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iPort
Command
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iPort
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iPort
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iPort
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