GENERAL DESCRIPTION
The PCD5041 DECT Burst Mode Controller (BMC) is a custom IC that performs the DECT Physical Layer and MAC Layer time-critical functions, for use in DECT handset products which comply with the following standards (and updates):
• DECT CI part 2: Physical layer (DE/RES 3001-2)
• DECT CI part 3 : Medium Access Control layer (DE/RES 3001-3)
• DECT CI part 7: Security features for DECT (DE/RES 3001-7)
• DECT CI part 9: Public Access Profile (DE/RES 3001-9).

The PCD5041 has interfaces to:
• ADPCM CODECs in the handset mode
• A radio transceiver; the interface is fully decoded, and includes power-down signals
• An external microcontroller.
The PCD5041 is designed to be connected to an ADPCM CODEC (Philips’ PCD5032, for example) and an 80C51-type microcontroller. Other microcontrollers (e.g. 68000) and CODECs can also be supported.

FEATURES
• On-chip pre-programmed Communication Controller with embedded firmware for implementation of Traffic Bearer Control (TBC), MAC message handling, scanning, and control of the device’s other functional units.
• Portable Part (PP) modes
• TDMA frame (de)multiplexing
• Encryption
• Scrambling
• CRC generation and checking
• Beacon transmission control (by P00 packets)
• On-chip comparator for receive data slicer function (only available in the LQFP80 package)
• Switches up to12 active speech channels from speech interface to 1152 kbit/s. radio interface, and vice versa
• Dual channel speech/data capability
• Received Signal Strength Indication (RSSI) measurement, with on-chip 6-bits peak/hold detector
• Quality control report
• Digital Phase Locked Loop (DPLL)
• Synchronization (handset to active bearer, base station to cluster of RFPs)
• Seamless handover procedure
• Fast (hardware) and slow (software) mute function
• 1 kbyte extended RAM memory
• On-chip crystal oscillator (13.824 MHz)
• Programmable microcontroller clock frequency
• Programmable interrupts
• Watchdog with two programmable time-outs
• Low power consumption in standby mode
• Low supply voltage (2.7 to 5.5 V)
• SACMOS technology.