BCM89071A1CUBXGT Datasheet, PDF (27/69 Pages) Cypress Semiconductor – Single-Chip Automotive Grade Bluetooth Transceiver and Baseband Processor

BCM89071 Data Sheet
EEPROM
EEPROM
The BCM89071 includes a Broadcom Serial Control (BSC) master interface. The BSC interface supports low-
speed and fast mode devices and is compatible with I²C slave devices. Multiple I²C master devices and flexible
wait state insertion by the master interface or slave devices are not supported. The BCM89071 provides 400
kHz, full speed clock support.
The BSC interface is programmed by the CPU to generate the following BSC transfer types on the bus:
• Read-only
• Write-only
• Combined read/write
• Combined write-read
NVRAM may contain configuration information about the customer application, including the following:
• Fractional-N information
• BD_ADDR
• UART baud rate
• SDP service record
• File system information used for code, code patches, or data
External Reset
The BCM89071 has an integrated power-on reset circuit which completely resets all circuits to a known power
on state. This action can also be driven by an external reset signal, which can be used to externally control the
device, forcing it into a power-on reset state. The RST_N signal input is an active-low signal for all versions of
the BCM89071. The BCM89071 requires an external pull-up resistor on the RST_N input. Alternatively, the
RST_N input can be connected to REG_EN or driven directly by a host GPIO.
Broadcom^®
April 16, 2015 • 89071-DS106-R
Baseband Transceiver and Baseband Processor
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