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Modules

HandsFreeLink Unit

Honda Part Number: 39770-TL2-A110-M1
Mfg: Johnson Controls Interiors
Model # / FCC ID: CB2BLUEC08
Relevant FCC filing for older model: CB2BLUEC05

A single PCBA comprises the unit, with one external connector. The PCBA houses the main MCU, the bluetooth transceiver, a DSP(?), an IEBus transceiver, and power regulation.

Photos

Block Diagram HFL Block Diagram
PCBA - Top Overview PCBA Top Overview
IC - IEBus IEBus IC
IC - DSP(?) DSP IC
IC - BlueTooth BlueTooth IC
IC - CAN CAN IC
IC - DRAM DRAM IC
ICs - Misc Misc ICs - 1 Misc ICs - 2 Misc ICs - 3

Connector

Color: Grey
Pin Count: 28

FSM Pinout Image FSM Pinout

Pin# Color Description Pin# Color Description
1 BLK Ground 15 WHT Battery Power
2 PUR HFL Steering Sw 16 PUR Accessory Power
3 PUR HFL Mute 17 BLU B-CAN Low
4 RED GA-NET Bus + 18 BLK B-CAN High
5 GRN GA-NET Bus - 19 GRY* GA-NET Bus Shield
6 WHT Navi Comm 4 20 BLK Navi Comm 1
7 RED Navi Comm 3 21 GRN Navi Comm 2
8 GRY* Navi Comm Shield 22 GRY* Audio Shield
9 GRN Audio Right + 23 WHT Audio Right -
10 GRN Audio Left + 24 RED Audio Left -
11 GRN Telm Sig + 25 RED Telm Sig -
12 N/A Mic Sig Shield 26 GRY* Telm Sig Shield
13 GRN Mic + 27 GRN HFL Navi Mic +
14 WHT Mic - 28 RED HFL Navi Mic -

ICs

  • Main MCU: Renesas "SH7760 Group" HD6417760BL200ADV
    • 200MHz 32-bit RISC
    • 1x 256MBit DRAM (Offboard)
    • 1x 256MBit Flash (Offboard)
    • Notable Interfaces:
      • 2x I2C 400Kbps
      • SSI (Serial Sound Interface)
      • 2x CAN 2.0B
      • USB Host (1.1)
    • Datasheet
    • Notes
      • Marked as 64117760
      • Seems to be used in LOTS of Honda/Acura smart modules
  • BlueTooth Transceiver: Broadcom BCM2035MIFBG
    • Bluetooth 1.1/1.2 😔
    • PCM audio output
    • USB/UART interfaces
    • Very Old Chipset
  • IEBus Transceiver: Renesas UPD72042B
    • IEBus is used to carry GA-NET (audio control network) in this vehicle
    • Not much "aftermarket" info is out there on IEBus or GA-NET
  • CAN Transceiver: NXP TJA1041T
    • CAN 2.0B 1MBit/sec
    • Local wake-up input

AcuraLink Control Unit

Honda Part Number: 39820-TL2-A610-M1
Also Marked: GEX-7807 (Pioneer internal PN?)
Mfg: Pioneer Corporation, Made In Thailand
Serial No Example: KHT009419US

Two boards comprise the unit, linked by 2 FFCs.
The "upper" board houses both external connectors, the main MCU, the XM module, and all power regulation.
The "lower" board houses a more powerful processor with off-board RAM and flash memory.

Photos

Upper Board - Top Overview Upper Board Top Overview
Upper Board - Bottom Overview Upper Board Bottom Overview
Lower Board - Top Overview Lower Board Top Overview
XM Sub-Module XM Module Chips

External Connectors

Connector A

Color: Grey
Pin Count: 32

FSM Pinout Image FSM Pinout

Pin# Color Description Pin# Color Description
1 WHT Battery Power 17 WHT Navi Comm 1
2 PUR Accessory Power 18 RED Navi Comm 2
3 BRN Ignition Power 19 GRN Navi Comm 3
4 N/A NC 20 BLK Navi Comm 4
5 N/A NC 21 GRY* Navi Comm Shield
6 RED F-CAN Low 22 WHT HFT Comm 1
7 WHT F-CAN High 23 RED HFT Comm 2
8 BLU B-CAN Low 24 GRN HFT Comm 3
9 PNK B-CAN High 25 BLK HFT Comm 4
10 N/A NC 26 GRY* HFT Comm Shield
11 N/A NC 27 N/A NC
12 N/A NC 28 BLK Ground
13 GRN Audio Right + 29 GRY* GA-NET Bus Shield
14 WHT Audio Right - 30 RED GA-NET Bus +
15 BLK Audio Left + 31 GRN GA-NET Bus -
16 RED Audio Left - 32 GRY* Audio Shield

*= Shielded bundle, may be black or dark-gray
Note: Pin2 is BRN on Sedan, PUR on Sport Wagon

Connector B

Color: Black
Pin Count: 2 (Coaxial)

FSM Pinout Image FSM Pinout

Pinout:

Pin # Description
1 (Inner) Signal
2 (Outer) Shield

ICs

Upper Board

  • Main MCU: Renesas "MC32C" M30878FJAGP
    • 32MHz 16/32-bit ARM
    • 248k RAM
    • 512k FLASH
    • Notable Interfaces:
      • 2x CAN 2.0B
    • 144-pin LQFP
    • Datasheet (Originally named REN_rej03b0127_32c87ds_DST_20080731.pdf, source)
    • Notes
      • Marked as PEG701A8 (Pioneer Electronics Group?)
      • Not seen elsewhere in Honda/Acura devices
  • GA-NET Transceiver: Renesas HA12240FP
  • XM Receiver: MAX 2141 SDARS Receiver
    • Seems identical to prior MAX2140 (Datasheet)

Lower Board

  • Main MCU: Renesas "SH7760 Group" HD6417760BL200ADV
    • 200MHz 32-bit RISC
    • 2x 256MBit DRAM (Offboard)
    • 2x 256MBit Flash (Offboard)
    • Notable Interfaces:
      • 2x I2C 400Kbps
      • SSI (Serial Sound Interface)
      • 2x CAN 2.0B
      • USB Host (1.1)
    • Datasheet
    • Notes
      • Marked as 64117760
      • Seems to be used in LOTS of Honda/Acura smart modules

Climate Control Unit

Honda Part Number: 79600-TL2-A41 (A01 for 09-10 MYs)
Mfg: Unknown
Model # N/A

Two PCBAs comprise the unit, one mounted horizontally in the white shell, which contains all the electronics, and the other vertically against the button assembly that is only passives, LEDs, and switches. They interconnect via a bladed board-to-board.

Photos

TODO

External Connectors

Connecter <A?>

Color: Grey
Pin Count: 12 (2 Rows)

FSM Pinout Image

#### Connector

Color: Grey
Pin Count: 28 (2 Rows)

FSM Pinout Image

ICs

  • Main MCU: Stanley TL0V-AMP
    • Pin Count: 100
    • Unidentified