Document Number: 002-14826 Rev. *G
Page 38 of 65
PRELIMINARY
CYW43903
12. I/O States
provides I/O state information for the signals listed.
The following notations are used in
:
■
I: Input signal
■
O: Output signal
■
I/O: Input/Output signal
■
PU = Pulled up
■
PD = Pulled down
■
NoPull = Neither pulled up nor pulled down
Table 12. I/O States
Ball Name
I/O
Keeper
1
Active Mode
Low Power State/Sleep (All
Power Present)
Power-down
2
(REG_ON Held Low)
Out-of-Reset; Before
Software Download
(REG_ON High)
Power Rail
HIB_REG_ON_IN
I
N
Input; PD (Pull-down can be
disabled.)
Input; PD (Pull-down can be
disabled.)
Input
Input
–
REG_ON
I
N
Input; PD (Pull-down can be
disabled.)
Input; PD (Pull-down can be
disabled.)
Input; PD (of 200 kΩ) Input; PD (of 200 kΩ)
–
GPIO_0
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: PD])
Input/Output; PU, PD, or NoPull
(programmable [Default: PD])
High-Z, NoPull
Input; PD
VDDIO
GPIO_1
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD, or NoPull
(programmable [Default:
NoPull])
High-Z, NoPull
Input; NoPull
VDDIO
GPIO_2
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD, or NoPull
(programmable [Default:
NoPull])
High-Z, NoPull
Input; NoPull
VDDIO
GPIO_3
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: PD])
Input/Output; PU, PD, or NoPull
(programmable [Default: PD])
High-Z, NoPull
Input; PD
VDDIO
GPIO_4
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: NoPull])
Input/Output; PU, PD, or NoPull
(programmable [Default:
NoPull])
High-Z, NoPull
Input; NoPull
VDDIO
GPIO_5
I/O
Y
Input/Output; PU, PD, or
NoPull (programmable
[Default: PD])
Input/Output; PU, PD, or NoPull
(programmable [Default: PD])
High-Z, NoPull
Input; PD
VDDIO