BCM20706 Data Sheet
Microprocessor Unit
The OTP is designed to store a minimal amount of information. Aside from OTP data, most user configuration
information will be downloaded to RAM after the BCM20706 boots and is ready for host transport
communication.
The OTP contents are limited to:
•
•
Parameters required prior to downloading the user configuration to RAM.
Parameters unique to each part and each customer (for example, the Bluetooth device address and/or the
software license key).
Note: OTP requires a 3.3V supply.
External Reset
An external active-low reset signal, RESET_N, can be used to put the BCM20706 in the reset state. An external
voltage detector reset IC with 50 ms delay is needed on the RESET_N. The RESET_N should be released only
after the VDDO supply voltage level has been stabilized for 50 ms.
Figure 2: Reset Timing
50 ms
Reset
(External)
VDDIO
~2.4 ms
VDDIO POR
VDDC
0.5 ms
~2.4 ms
VDDC Reset (Internal)
XTAL_RESET
XTAL_BUF_PU
10 LPO cycles
8 LPO cycles
Broadcom®
May 19, 2016 • 20706-DS202-R
Bluetooth SoC
Page 12
BROADCOM CONFIDENTIAL
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