Owner manual

AT76C551

1612D–08/01

Bluetooth Baseband Register Set

Bluetooth Baseband processor register file is mapped to the AMBA address space. Table 3 summarizes Bluetooth Base-

band registers, grouped in functional sections.

Table 3. Bluetooth Register Set

Packet Processing

Address0 600000 Sets ADDR field used is various processes

Address1 600004 Access code, packet encoding, encryption, etc.

Pgrsp_counter 600008 Counter used in page response substate

Parity0 60000C Set/Get the parity bits included in current access

Parity1 600010 Code/FHS packet

RSSI_CtrlStatus 600014 Control/Status of RSSI ADC

Controlstatus1 600018 Packet processing control/status 1 register

Controlstatus2 60001C Packet processing control/status 2 register

Bluetooth Clock

CLKN 600020 Native clock (free-running, RO)

CLOCK 600024 Provides estimated clock to frequency hopping

CLKPhase 600028 Native clock phase (free-running, RO)

CLKPhaseCorrelCorrect 60002C Clock phase correction used at correlator trigger

CLKPhaseLimit 600030 Native clock phase limit (sets slot duration)

CLKPhaseWhenCorrel 600034 Native clock phase latched at correlator trigger

CLKControl 600038 Clock control register

CmpTimer_RxTxDataStart 60003C RX/TX start compare timer

CmpTimer_GenPurpose 600040 General purpose compare timer

Transceiver Control

RxTxSettleTimes 600044 Settle times for RX/TX power-up signals

TcCtrlStatus 600048 Transceiver control/status register

TcCommand 60004C Transceiver command register

TcProgData 600050 Transceiver programming (via 3-wire bus) register

Bluetooth Interrupt

IntMask 600054 Bluetooth interrupt mask register

IntStatus 600058 Bluetooth interrupt status register

IntClear 60005C Bluetooth interrupt clear register

Payload FIFOs

RxFifoCtrlStatus 600060 RX FIFO control/status register

RxFifoReadPort 600064 RX FIFO read port (8-bit)

TxFifoCtrlStatus 600068 TX FIFO control/status register

TxFifoWritePort 60006C TX FIFO write port (8-bit)