BCM43455 Datasheet, PDF (95/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM43455 Preliminary Data Sheet
I/O States
I/O States
The following notations are used in Table 23:
• 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 23: I/O States
Name
I/O
WL_REG_ON
I
BT_REG_ON
I
BT_CLK_REQ I/O
BT_HOST_WAKE I/O
BT_DEV_WAKE I/O
BT_GPIO_2,
I/O
BT_GPIO_3
BT_GPIO_4,
I/O
BT_GPIO_5
BT_UART_CTS_N I
BT_UART_RTS_N O
BT_UART_RXD I
BT_UART_TXD O
SDIO_DATA[0:3] I/O
Keeper^a Active Mode
Power-down^b
Low Power State/Sleep (BT_REG_ON and
(All Power Present) WL_REG_ON Held Low)
N
Input; PD (pull-down can Input; PD (pull-down can Input; PD (of 200K)
be disabled)
be disabled)
N
Input; PD (pull down can Input; PD (pull down can Input; PD (of 200K)
be disabled)
be disabled)
Y
Open drain or push-pull Open drain or push-pull High-Z, NoPull
(programmable). Active (programmable). Active
high.
high
Y
Input/Output; PU, PD, Input/Output; PU, PD, High-Z, NoPull
NoPull (programmable) NoPull (programmable)
Y
Input/Output; PU, PD, Input; PU, PD, NoPull High-Z, NoPull
NoPull (programmable) (programmable)
Y
Input/Output; PU, PD, Input/Output; PU, PD, High-Z, NoPull
NoPull (programmable) NoPull (programmable)
Y
Input/Output; PU, PD, Input/Output; PU, PD, High-Z, NoPull
NoPull (programmable) NoPull (programmable)
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)
Out-of-Reset;
Before SW Download
(BT_REG_ON High;
WL_REG_ON High)
Input; PD (of 200K)
Input; PD (of 200K)
Open drain. Active high
Input, PU
Input, PD
Input, PD
Input, PU
Input; PU
Input; PU
Input; PU
Input; PU
Input; PU (SDIO Mode)
(WL_REG_ON High and
BT_REG_ON = 0) and
VDDIOs Are Present
Input; PD (of 200K)
Input; PD (of 200K)
Open drain. Active high.
Power Rail
–
–
BT_VDDO
Input, PD
Input, PD
Input, PD
Input, PU
Input; PU
Input; PU
Input; PU
Input; PU
Input; PU (SDIO Mode)
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
BT_VDDO
WL_VDDIO
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 94