Data Sheet

K019-CW43-DW datasheet_V1.6_15042020.doc | Shawn Xiao

7. Interface Timing Diagram

7.1

Power-up Sequence Timing Diagram

The module has signals that allow the host to control power consumption by enabling

disabling the Bluetooth, WLAN and internal regulator blocks. These signals are described

below.Additionally, diagrams are provided to indicate proper sequencing of the signals for

carious

operating states. The timing value indicated are minimum required values: longer

delays are

also acceptable.

※ WL_REG_ON: Used by the PMU to power up the WLAN section. When this pin is

high, the regulators are enabled and the WLAN section is out of reset. When this

pin is low the WLAN section is in reset.

※ BT_RST_N: Low asserting reset for Bluetooth only. This pin has no effect

on WLAN and does not control any PMU functions. This pin must be driven high or

low (not left floating).

WLAN=ON, Bluetooth=ON