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BCM43143KMLGT Datasheet, PDF (27/58 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11b/g/n MAC/PHY/Radio with USB/SDIO Host Interface
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BCM43143 Advance Data Sheet
Signal and Pin Descriptions
Section 8: Signal and Pin Descriptions
Package Signal Descriptions
The signal name, type, and description of each pin in the BCM43143 56-pin QFN package is listed in Table 4.
The symbols shown in the Type column indicate pin directions (I/O = bidirectional, I = input, O = output, and OD
= open drain output) and the internal pull-up/pull-down characteristics (PU = weak internal pull-up resistor and
PD = weak internal pull-down resistor), if any. Resistor strapping options are defined in Table 5 on page 30.
Pin
Signal
SDIO Bus Interface
48
SDIO_CLK
47
SDIO_CMD
50
SDIO_DATA0
49
SDIO_DATA1
45
SDIO_DATA2
44
SDIO_DATA3
USB Interface
39
USB_DM
38
USB_DP
41
USB_MONPLL
42
USB_RREF
WLAN RF Signal Interface
7
WRF_OUT_IN1
9
WRF_RFIN2
10
WRF_GPIOOUT
Table 4: BCM43143 Signal Descriptions
Type Description
I/O
SDIO clock
When not used as SDIO this is a general purpose GPIO pin
(GPIO12) or an I2S Audio Interface signal (I2S_WS)
I/O
SDIO bus command line
When not used as SDIO this is a general purpose GPIO pin
(GPIO11) or an I2S Audio Interface signal (I2S_BITCLK)
I/O
SDIO data line 0
When not used as SDIO this is a general purpose GPIO pin
(GPIO14)
I/O
SDIO data line 1
When not used as SDIO this is a general purpose GPIO pin
(GPIO13) or an I2S Audio Interface signal (I2S_SDOUT)
I/O
SDIO data line 2
When not used as SDIO this is a general purpose GPIO pin
(GPIO10)
I/O
SDIO data line 3
When not used as SDIO this is a general purpose GPIO pin
(GPIO9)
I/O
USB data negative
I/O
USB data positive
–
USB reserved pin for Diagnostic purposes only
–
USB bandgap reference resistor/capacitor, tie this pin in parallel
through a 100 pF capacitor and a 4 kΩ resistor to ground
I/O
2.4 GHz RF output, 2.4 GHz RF input 1
I
2.4 GHz RF input 2
O
WLAN reference output.
Connect to ground through a 15 kΩ, 1% resistor.
Broadcom®
November 14, 2014 • 43143-DS104-R
Single-Chip IEEE 802.11b/g/n MAC/PHY/Radio
Page 26
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