BCM88335 Data Sheet
Bluetooth Power Management Unit
Bluetooth Power Management Unit
The Bluetooth Power Management Unit (PMU) provides power management features that can be invoked by
either software through power management registers or packet handling in the baseband core. The power
management functions provided by the BCM88335 are:
•
•
•
RF Power Management
Host Controller Power Management
“BBC Power Management” on page 39
RF Power Management
The BBC generates power-down control signals to the 2.4 GHz transceiver for the transmit path, receive path,
PLL, and power amplifier. The transceiver then processes the power-down functions accordingly.
Host Controller Power Management
When running in UART mode, the BCM88335 may be configured so that dedicated signals are used for power
management handshaking between the BCM88335 and the host. The basic power saving functions supported
by those handshaking signals include the standard Bluetooth defined power savings modes and standby modes
of operation.
Broadcom®
September 23, 2015 • 88335-DS100-R
Page 36
BROADCOM CONFIDENTIAL
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