BCM4354KKWBGT Datasheet, PDF (125/192 Pages) Cypress Semiconductor – Single-Chip 5G Wi-Fi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM4354 Data Sheet
I/O States
Table 28: I/O States (Cont.)
Name
I/O Keeper^a Active Mode
RF_SW_CTRL_X I/O Y
O: NoPull
Low Power State/Sleep (All
Power Present)
Power-down^b
(BT_REG_ON and
WL_REG_ON Held
Low)
O: NoPull
I: PD
Out-of-Reset; Before
SW Download
(BT_REG_ON High;
WL_REG_ON High)
O: NoPull
(WL_REG_ON High
and BT_REG_ON Low)
and VDDIOs Are
Present
Power Rail
: NoPull
VDDIO_RF
a. Keeper column: N = pad has no keeper. Y = pad has a keeper. Keeper is always active except in Power-down state. If there is no keeper, and it is an input
and there is Nopull, then the pad should be driven to prevent leakage due to floating pad (SDIO_CLK, for example).
b. In the Power-down state (xx_REG_ON=0): High-Z; NoPull => the pad is disabled because power is not supplied.
c. Depending on whether the PCM interface is enabled and the configuration of PCM is in master or slave mode, it can be either input or output.
d. Depending on whether the I²S interface is enabled and the configuration of I²S is in master or slave mode, it can be either input or output.
e. For WLBGA this GPIO has NoPull in this state. For WLCSP this GPIO has a PU in this state.
Broadcom^®
October 15, 2014 • 4354-DS109-R
BROADCOM CONFIDENTIAL
Page 124