LG KF750 Service Manual page 37

3. TECHNICAL BRIEF
■ HCI
- HCI H4 Transport Layer
- HCI proprietary commands (e.g. peripherals control)
- Single HCI command for patch/upgrade download
■ Supports Pitch-Period Error Concealment (PPEC)
■ Efficient and flexible support for WLAN coexistence in collocated scenario
■ Low power consumption
- Ultra low power architecture with 3 different low-power levels
- Deep Sleep modes, including Host power saving feature
- Dual Wake-up mechanism: initiated by the Host or by the Bluetooth device
■ Communication interfaces
- Fast UART up to 4Mbit/s
- SPI interface
- PCM interface
- Up to 10 additional flexibly programmable GPIOs
- External interrupts possible through the GPIOs
- Fast master I2C interface
■ Clock support
- System clock input (digital or sine wave) at9.6, 10, 13, 16, 16.8, 19.2, 26, 33.6 or 38.4MHz
- Low Power clock input at 32.768 kHz
■ ARM7TDMI CPU
■ Memory organization
- On chip RAM, including provision for patches
- On chip ROM, preloaded with SW up to HCI
■ Ciphering support up to 128 bits key
■ Single power supply with internal regulators for core voltage generation
■ Supports 1.65 to 2.85 Volts IO systems
■ Auto calibration (VCO, Filters)
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