BCM4356XKWBGT Datasheet, PDF (124/195 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1, FM Receiver, and Wireless Charging

BCM4356 Advance Data Sheet
I/O States
I/O States
The following notations are used in Table 28: “I/O States,” on page 123:
• I: Input signal
• O: Output signal
• I/O: Input/Output signal
• PU = Pulled up
• PD = Pulled down
• NoPull = Neither pulled up nor pulled down
• Where applicable, the default value is shown in bold brackets (for example, [default value])
Name
I/O Keeper^a Active Mode
WL_REG_ON
BT_REG_ON
IN
I: 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
BT_DEV_WAKE
I/O: PU, PD, NoPull
Programmable
BT_GPIO 5
BT_GPIO 4
Table 28: I/O States
Low Power State/Sleep (All
Power Present)
Power-down^b
(BT_REG_ON and
WL_REG_ON Held
Low)
I: PD
Pull-down can be disabled
I: PD (of 200K)
Open drain or push-pull
Programmable
Active high
I/O: PU, PD, NoPull
Programmable
High-Z, NoPull
High-Z, NoPull
BT_GPIO 2, 3
BT_UART_CTS
BT_UART_RTS
BT_UART_RXD
BT_UART_TXD
SDIO Data
SDIO CMD
SDIO_CLK
IY
O
I
O
I/O N
I
I: NoPull; PU programmable
O: NoPull
I: PU
O: NoPull
I/O:
PU (SDIO Mode)
I: NoPull
O: NoPull
I: NoPull
O: NoPull
I:
PU (SDIO Mode)
I: NoPull
I: noPull
High-Z, NoPull
High-Z, NoPull
Out-of-Reset;
Before SW Download
(BT_REG_ON High;
WL_REG_ON High)
I: PD (of 200K)
(WL_REG_ON High
and BT_REG_ON = 0)
and VDDIOs Are
Present
I: PD (of 200K)
Power Rail
–
Open drain
Active high
I: PD
Open drain
Active high
I: PD
BT_VDDIO
I: PU
I: PU
I: Floating, but input
disabled
I: PU
I: PU
I:
PU (SDIO Mode)
I: NoPull
I:
PU (SDIO Mode)
I: NoPull
VDDIO_SD
Broadcom^®
May 8, 2015 • 4356-DS103-R
BROADCOM CONFIDENTIAL
Page 123