BCM20705 Datasheet, PDF (12/67 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor

BCM20705 Data Sheet
Block Diagram
Block Diagram
Figure 2 shows the interconnect of the major BCM20705 physical blocks and associated external interfaces.
Figure 2: Functional Block Diagram
JTAG
Flash I/F
RF
ARM7TDMI-S
DMA
Address Decoder
AHB2EBI
External
Bus I/F
Trap & Patch
32-bit AHB
AHB2APB
AHB2MEM
AHB2MEM
PMU Control
WD Timer
GPIO+Aux
Remap &
Pause
SW
Timers
ROM
RAM
Interrupt
Controller
JTAG Master
OTP
(128 bytes)
32-bit APB
Bluetooth Radio
Blue RF Registers
Digital
Modulator
Calibration &
Control
Digital Demod
Bit Sync
Low Power
Scan
LCU
Buffer
APU
Blue RF I/F
BT Clk/
Hopper
Rx/Tx
Buffer
PMU
LPO
POR
COEX
SECI
Bus Arb
Scan JTAG
SPI
Master
USB
PCM
UART
Debug UART
SPI Transport
I2C_Master
FIFO 1
FIFO 2
PTU
I/O
Port Control
Digital I/O
Broadcom®
November 13, 2014 • MCS20705-DS104-R
BROADCOM CONFIDENTIAL
Bluetooth Transceiver and Baseband Processor
Page 11