BCM43907 Datasheet, PDF (60/128 Pages) Cypress Semiconductor – WICED™ IEEE 802.11 a/b/g/n SoC with an Embedded Applications Processor

BCM43907 Preliminary Data Sheet
Signal Descriptions
Signal Descriptions
Table 10 provides the signal name, type, and description for each BCM43907 bump. The symbols shown under
Type indicate pin directions (I/O = bidirectional, I = input, and O = output) and the internal pull-up/pull-down
characteristics (PU = weak internal pull-up resistor and PD = weak internal pull-down resistor), if any.
Table 10: Signal Descriptions
Bump Number Signal Name
Type Description
Broadcom Serial Control (BSC) Interfaces
92
I2C0_CLK
O
93
I2C0_SDATA
I/O
89
I2C1_CLK
O
90
I2C1_SDATA
I/O
Clocks
222
WRF_XTAL_XOP
I
226
WRF_XTAL_XON
O
213
LPO_XTAL_IN
I
249
HIB_XTALIN
I
250
HIB_XTALOUT
O
194
CLK_REQ
O
Ethernet MAC Interface (MII/RMII)
297
RMII_G_RXC
I
293
RMII_G_COL
I
298
RMII_G_CRS
I
294
RMII_G_TXC
I
304
RMII_G_TXD0
O
311
RMII_G_TXD1
O
300
RMII_G_TXD2
O
284
RMII_G_TXD3
O
303
RMII_G_RXD0
I
299
RMII_G_RXD1
I
295
RMII_G_RXD2
I
296
RMII_G_RXD3
I
288
RMII_MDIO
I/O
310
RMII_MDC
O
306
RMII_G_TXEN
O
312
RMII_G_RXDV
I
BSC master clock.
BSC serial data
BSC master clock
BSC serial data
XTAL oscillator input.
XTAL oscillator output.
External sleep clock input (32.768 kHz).
3.3V 32 kHz crystal input
3.3V 32 kHz crystal output
Reference clock request
MII receive clock
MII collision detection
MII carrier sense
MII/RMII transmit clock
MII/RMII transmit signal
MII/RMII transmit signal
MII transmit signal
MII transmit signal
MII/RMII receive signal
MII/RMII receive signal
MII receive signal
MII receive signal
MII/RMII management data
MII/RMII management clock
MII/RMII transmit enable
MII/RMII receive data valid
Broadcom^®
March 12, 2016 • 43907-DS104-R
BROADCOM CONFIDENTIAL
Page 59