BCM4390DKWBGT Datasheet, PDF (53/78 Pages) Cypress Semiconductor – WICED™ Wi-Fi IEEE 802.11 b/g/n SoC with Embedded Application Processor

BCM4390 Advance Data Sheet
I/O States
I/O States
The following notations are used in Table 10:
• 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 10: I/O States
Name
I/O
APPS_WAKE
I/O
APPS_REG_ON
I
APPS_UART1_CTS_N I
APPS_UART1_RTS_N O
APPS_UART1_RXD I
APPS_UART1_TXD O
SDIO_CMD
I/O
SDIO_DATA[0:3] I/O
SDIO_CLK
I
GPIO_B0
I/O
Keeper^a Active Mode
Power-down^b
Low Power State/Sleep (APPS_REG_ON and
(All Power Present) WL_REG_ON Held Low)
Y
Input/Output; PU, PD, Input; PU, PD, NoPull High-Z, NoPull
NoPull
(programmable)
(programmable)
N
Input; PD (pull down Input; PD (pull down Input; PD (of 200K)
can be disabled)
can be disabled)
Y
Input; NoPull
Input; NoPull
High-Z, NoPull
Y
Output; NoPull
Output; NoPull
High-Z, NoPull
Y
Input; PU
Input; NoPull
High-Z, NoPull
Y
Output; NoPull
Output; NoPull
High-Z, NoPull
N
Input/Output; PU (SDIO Input; PU (SDIO Mode) High-Z, NoPull
Mode),
N
Input/Output; PU (SDIO Input; PU (SDIO Mode) High-Z, NoPull
Mode)
N
Input; NoPull
Input; noPull
High-Z, NoPull
Y
Input/Output; PU, PD, Input/Output; PU, PD, High-Z, NoPull
NoPull (programmable NoPull (programmable
[Default: PD])
[Default: PD])
Out-of-Reset;
Before SW Download
(APPS_RST_N High;
WL_REG_ON High)
Input, PD
Input; PD (of 200K)
Input; PU
Input; PU
Input; PU
Input; PU
Input; PU (SDIO Mode)
Input; PU (SDIO Mode)
Input; noPull
Input; PD
(WL_REG_ON High and
APPS_RST_N=0) and
VDDIOs Are Present
Input, PD
Power Rail
APPS_VDDO
Input; PD (of 200K)
–
Input; PU
Input; PU
Input; PU
Input; PU
Input; PU (SDIO Mode)
APPS_VDDO
APPS_VDDO
APPS_VDDO
APPS_VDDO
WL_VDDIO
Input; PU (SDIO Mode) WL_VDDIO
Input; noPull
Input; PD
WL_VDDIO
WL_VDDIO
BROADCOM ®
February 5, 2014 • 4390-DS103-R
BROADCOM CONFIDENTIAL
WICED Wi-Fi IEEE 802.11 SoC w/Embedded App Processor
Page 52