BCM88335 Datasheet, PDF (77/140 Pages) Cypress Semiconductor – Single-Chip 5G Wi-Fi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 for Automotive Applications

BCM88335 Data Sheet
Signal Descriptions
Table 15: WLBGA Signal Descriptions (Cont.)
WLBGA
Ball#
Signal Name
Description
Type
WLAN GPIO Interface
Note: The GPIO signals can be multiplexed via software and the JTAG_SEL pin to behave as various specific
functions. See Table 21: “BCM88335 GPIO/SDIO Alternative Signal Functions,” on page 85 for additional
details.
B6
GPIO_0
Programmable GPIO pins.
I/O
C6
GPIO_1
Note: These GPIO signals can I/O
D6
GPIO_2
be configured by software: as _I/O
B5
GPIO_3
either inputs or outputs, to have _I/O
C5
GPIO_4
internal pull-ups or pull-downs
enabled or disabled, and to use
I/O
D5
GPIO_5
either a high or low polarity
I/O
C4
GPIO_6
upon assertion.
I/O
D4
GPIO_7
I/O
H1
GPIO_8
I/O
JTAG Interface
E5
JTAG_SEL
JTAG select. Pull high to select I/O
the JTAG interface. If the JTAG
interface is not used, this pin
may be left floating or
connected to ground.
Note: See
Table 21: “BCM88335 GPIO/
SDIO Alternative Signal
Functions,” on page 85 for
additional details.
Clocks
H12
J12
B4
H3
WRF_XTAL_IN
WRF_XTAL_OUT
LPO_IN
CLK_REQ
XTAL oscillator input.
I
XTAL oscillator output.
O
External sleep clock input
I
(32.768 kHz).
Reference clock request
O
(shared by BT and WLAN).
Bluetooth PCM
G2
G1
J3
H2
BT_PCM_CLK/BT_PCMCLK PCM clock; can be master
I/O
(output) or slave (input).
BT_PCM_IN
PCM data input.
I
BT_PCM_OUT
PCM data output.
O
BT_PCM_SYNC
PCM sync; can be master
I/O
(output) or slave (input).
Broadcom^®
September 23, 2015 • 88335-DS100-R
BROADCOM CONFIDENTIAL
Page 76