I/O States
BCM43455 Preliminary Data Sheet
Table 23: I/O States (Cont.)
Out-of-Reset;
b
Power-down
Before SW Download
(BT_REG_ON High;
WL_REG_ON High)
(WL_REG_ON High and
BT_REG_ON = 0) and
VDDIOs Are Present
Low Power State/Sleep (BT_REG_ON and
a
Name
I/O Keeper Active Mode
(All Power Present)
WL_REG_ON Held Low)
Power Rail
Input; PDe
Input; PDe
GPIO_8
I/O
Y
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: PD])e
Input/Output; PU, PD,
High-Z, NoPull
WL_VDDIO
[Default: PD])e
GPIO_9
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Y
Y
Y
Y
Y
Y
Y
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: PD])
Input/Output; PU, PD,
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z, NoPull
High-Z
Input; PD
Input; PD
WL_VDDIO
WL_VDDIO
WL_VDDIO
WL_VDDIO
WL_VDDIO
WL_VDDIO
VDDIO_RF
[Default: PD])
GPIO_10
GPIO_13
GPIO_14
GPIO_15
GPIO_16
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD,
Input; NoPull
Input; NoPull
Input; NoPull
Input; NoPull
Input; NoPull
Output; NoPull
Input; NoPull
Input; NoPull
Input; NoPull
Input; NoPull
Input; NoPull
Output; NoPull
[Default: NoPull])
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD,
[Default: NoPull])
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD,
[Default: NoPull])
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD,
[Default: NoPull])
Input/Output; PU, PD,
NoPull (programmable NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD,
[Default: NoPull])
RF_SW_CTRL
[0:8]
Output; NoPull
Output; NoPull
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 output or input.
d. Depending on whether the I2S interface is enabled and the configuration of I2S is in master or slave mode, it can be either output or input.
e. NoPull when in SDIO mode.
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 96
BROADCOM CONFIDENTIAL
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