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12.5 I/O States
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 22. I/O States
Keeper
1
Name
I/O
Active Mode
WL_REG_ON
I
N
Input; PD (pull-down can be
disabled)
BT_REG_ON
I
N
Input; PD (pull down can be
disabled)
CLK_REQ
I/O
Y
Open drain or push-pull
(programmable). Active high.
BT_HOST_WAKE I/O
Y
Input/Output; PU, PD, NoPull
(programmable)
BT_DEV_WAKE
I/O
Y
Input/Output; PU, PD, NoPull
(programmable)
BT_GPIO 2, 3, 4, 5 I/O
Y
Input/Output; PU, PD, NoPull
(programmable)
BT_UART_CTS
I
Y
Input; NoPull
BT_UART_RTS
O
Y
Output; NoPull
BT_UART_RXD
I
Y
Input; PU
BT_UART_TXD
O
Y
Output; NoPull
SDIO Data
I/O
N
Input/Output;
PU (SDIO Mode)
SDIO CMD
I/O
N
Input/Output;
PU (SDIO Mode)
SDIO_CLK
I
N
Input; NoPull
BT_PCM_CLK
I/O
Y
Input; NoPull
Document Number: 002-14949 Rev. *G
PRELIMINARY
Table
22:
Low Power State/Sleep
(All Power Present)
Input; PD (pull-down can be
disabled)
Input; PD (pull down can be
disabled)
Open drain or push-pull
(programmable). Active high
Input/Output; PU, PD, NoPull
(programmable)
Input; PU, PD, NoPull
(programmable)
Input/Output; PU, PD, NoPull
(programmable)
Input; NoPull
Output; NoPull
Input; NoPull
Output; NoPull
Input; PU (SDIO Mode)
Input; PU (SDIO Mode)
Input; noPull
3
3
Input; NoPull
2
Power-down
Out-of-Reset;
(BT_REG_ON and
Before SW Download
WL_REG_ON Held
(BT_REG_ON High;
Low)
WL_REG_ON High)
Input; PD (of 200K)
Input; PD (of 200K)
Input; PD (of 200K)
Input; PD (of 200K)
PD
Open drain. Active high
High-Z, NoPull
Input, PU
High-Z, NoPull
Input, PD
High-Z, NoPull
Input, PD
High-Z, NoPull
Input; PU
High-Z, NoPull
Input; PU
High-Z, NoPull
Input; PU
High-Z, NoPull
Input; PU
High-Z, NoPull
Input; PU (SDIO Mode)
High-Z, NoPull
Input; PU (SDIO Mode)
High-Z, NoPull
Input; noPull
High-Z, NoPull
Output
CYW43353
(WL_REG_ON High
and BT_REG_ON =
0) and VDDIOs Are
Present
Power Rail
Input; PD (of 200K)
–
Input; PD (of 200K)
–
Open drain. Active high. BT_VDDIO
Input, PD
BT_VDDIO
Input, PD
BT_VDDIO
Input, PD
BT_VDDIO
Input; PU
BT_VDDIO
Input; PU
BT_VDDIO
Input; PU
BT_VDDIO
Input; PU
BT_VDDIO
Input; PU (SDIO Mode)
VDDIO_SD
Input; PU (SDIO Mode)
VDDIO_SD
Input; noPull
VDDIO_SD
Input, PD
BT_VDDIO
Page 66 of 113
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