48.md

0x48 BMBT Buttons

BMBT 0xf0 → GT 0x3b
BMBT 0xf0 → Radio 0x68
BMBT 0xf0 → Broadcast 0xff

This command is sent whenever BMBT buttons are pressed. It's applicable to all variants of the BMBT.

Related Commands

• 0x32 BMBT Volume & MFL Volume
• 0x3b MFL Buttons
• 0x47 BMBT "Soft" Buttons
• 0x49 BMBT Navigation Dial

Example Frames

F0 04 3B 48 05 82
F0 04 68 48 21 F5
F0 04 FF 48 08 4B

Parameters

Fixed length. One byte bit field.

BUTTON  = 0b0011_1111
STATE   = 0b1100_0000

Button 0b0011_1111

BUTTON_TONE        = 0b00_0100
BUTTON_SELECT      = 0b10_0000   # 4x3 only!
BUTTON_PREV        = 0b01_0000
BUTTON_NEXT        = 0b00_0000
BUTTON_PRESET_1    = 0b01_0001
BUTTON_PRESET_2    = 0b00_0001
BUTTON_PRESET_3    = 0b01_0010
BUTTON_PRESET_4    = 0b00_0010
BUTTON_PRESET_5    = 0b01_0011
BUTTON_PRESET_6    = 0b00_0011
BUTTON_AM          = 0b10_0001
BUTTON_FM          = 0b11_0001
BUTTON_MODE_PREV   = 0b10_0011
BUTTON_MODE_NEXT   = 0b11_0011   # 4x3 only!
BUTTON_OVERLAY     = 0b11_0000
BUTTON_POWER       = 0b00_0110   # Volume dial button
BUTTON_TAPE_EJECT  = 0b10_0100
BUTTON_TAPE_SIDE   = 0b01_0100
BUTTON_TP          = 0b11_0010   # Alt: DOLBY C
BUTTON_RDS         = 0b10_0010   # Alt: DOLBY B

BUTTON_TELEPHONE   = 0b00_1000
BUTTON_AUX_HEAT    = 0b00_0111   # "Clock"

BUTTON_MENU        = 0b11_0100
BUTTON_CONFIRM     = 0b00_0101   # Navigation dial button

State 0b1100_0000

STATE_PRESS      = 0b00
STATE_HOLD       = 0b01
STATE_RELEASE    = 0b10

Use Cases

Note: Press, Hold, Release events respectively.

General

# Menu
F0 04 FF 48 34 77
F0 04 FF 48 74 37
F0 04 FF 48 B4 F7

# Confirm (Navi. dial button)
F0 04 3B 48 05 82
F0 04 3B 48 45 C2
F0 04 3B 48 85 02

Vehicle

# Aux. Heat/"Clock"
F0 04 FF 48 07 44
F0 04 FF 48 47 04
F0 04 FF 48 87 C4

Telephone

# Telephone
F0 04 FF 48 08 4B
F0 04 FF 48 48 0B
F0 04 FF 48 88 CB

Radio

# Preset 1
F0 04 68 48 11 C5
F0 04 68 48 51 85
F0 04 68 48 91 45

# Preset 2
F0 04 68 48 01 D5
F0 04 68 48 41 95
F0 04 68 48 81 55

# Preset 3
F0 04 68 48 12 C6
F0 04 68 48 52 86
F0 04 68 48 92 46

# Preset 4
F0 04 68 48 02 D6
F0 04 68 48 42 96
F0 04 68 48 82 56

# Preset 5
F0 04 68 48 13 C7
F0 04 68 48 53 87
F0 04 68 48 93 47

# Preset 6
F0 04 68 48 03 D7
F0 04 68 48 43 97
F0 04 68 48 83 57

# FM
F0 04 68 48 31 E5
F0 04 68 48 71 A5
F0 04 68 48 B1 65

# AM
F0 04 68 48 21 F5
F0 04 68 48 61 B5
F0 04 68 48 A1 75

# Mode (Mode Prev. on 4x3 BMBT)
F0 04 68 48 23 F7
F0 04 68 48 63 B7
F0 04 68 48 A3 77

# Mode Next (4x3 BMBT only!)
F0 04 68 48 33 E7
F0 04 68 48 73 A7
F0 04 68 48 B3 67

# Overlay
F0 04 68 48 30 E4
F0 04 68 48 70 A4
F0 04 68 48 B0 64

# Power (Vol. dial button)
F0 04 68 48 06 D2
F0 04 68 48 46 92
F0 04 68 48 86 52

# Tape Eject
F0 04 68 48 24 F0
F0 04 68 48 64 B0
F0 04 68 48 A4 70

# Tape Side
F0 04 68 48 14 C0
F0 04 68 48 54 80
F0 04 68 48 94 40

# Tone
F0 04 68 48 04 D0
F0 04 68 48 44 90
F0 04 68 48 84 50

# Select
F0 04 68 48 20 F4
F0 04 68 48 60 B4
F0 04 68 48 A0 74

# Previous
F0 04 68 48 10 C4
F0 04 68 48 50 84
F0 04 68 48 90 44

# Next
F0 04 68 48 00 D4
F0 04 68 48 40 94
F0 04 68 48 80 54

# RDS/Dolby B
F0 04 68 48 22 F6
F0 04 68 48 62 B6
F0 04 68 48 A2 76

# TP/Dolby C
F0 04 68 48 32 E6
F0 04 68 48 72 A6
F0 04 68 48 B2 66