I/O States
BCM43907 Preliminary Data Sheet
Table 14: I/O States
Out-of-Reset; Before
Software Download
(REG_ON Held Low) (REG_ON High)
Low Power State/Sleep Power-downb
(All Power Present)
Ball Name
I/O Keepera Active Mode
Power Rail
GPIO_14
I/O
I/O
I/O
I/O
Y
Y
Y
Y
Input/Output; PU, PD, or Input/Output; PU, PD, or High-Z, NoPull
NoPull (programmable NoPull (programmable
Input; NoPull
Input; NoPull
Input; NoPull
Output; NoPull
VDDIO
[Default: NoPull])
[Default: NoPull])
GPIO_15
GPIO_16
Input/Output; PU, PD, or Input/Output; PU, PD, or High-Z, NoPull
NoPull (programmable NoPull (programmable
VDDIO
[Default: NoPull])
[Default: NoPull])
Input/Output; PU, PD, or Input/Output; PU, PD, or High-Z, NoPull
NoPull (programmable NoPull (programmable
VDDIO
[Default: NoPull])
[Default: NoPull])
RF_SW_CTRL
(0 to 9)
Output; NoPull
Output; NoPull
High-Z
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 (WL_REG_ON, for example).
b. In the power-down state (xx_REG_ON=0): High-Z; NoPull => the pad is disabled because power is not supplied.
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 73
BROADCOM CONFIDENTIAL
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