BCM20713A1KUBXGT Datasheet, PDF (25/65 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor

BCM20713 Preliminary Data Sheet
External Reset
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 BCM20713 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 BCM20713. The BCM20713 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.
One-Time Programmable Memory
The BCM20713 includes a One-Time Programmable (OTP) memory, allowing manufacturing customization and
avoiding the need for an on-board NVRAM.If customization is not required, then the OTP does not need to be
programmed. Whether the OTP is programmed or not, it is disabled after the boot process completes to save
power.
The OTP size is 128 bytes.
The OTP is designed to store a minimal amount of information. Aside from OTP data, most user configuration
information will be downloaded into RAM after the BCM20713 boots up and is ready for host transport
communication. The OTP contents are limited to:
• Parameters required prior to downloading user configuration to RAM.
• Parameters unique to a customer design.
Contents
The following are typical parameters programmed into the OTP memory:
• BD_ADDR
• Software license key
• Output power calibration
• Frequency trimming
• Initial status LED drive configuration
The OTP contents also include a static error correction table to improve yield during the programming process
as well as forward error correction codes to eliminate any long-term reliability problems. The OTP contents
associated with error correction are not visible by customers.
Broadcom^®
December 21, 2015 • 20713-DS102-R
Single-Chip Bluetooth Transceiver and Baseband Processor
Page 24
BROADCOM CONFIDENTIAL