BCM43907 Preliminary Data Sheet
Revision History
Figure 1: Functional Block Diagram
BCM43907
2 MB RAM,
640 KB ROM
TCM
512 KB RAM
320 KB ROM
USB 2.0
UART
APPS ARM
Cortex-R4
SDIO 3.0
PWM (6)
BSC
PWM
SDIO
SPI
32 KB (I),
32 KB (D)
ICACHE
UART (3)
WLAN
ARM
Cortex-R4
AXI-to-AXI
AXI to AXI
BSC (2)
Bridge
Bridge
USB
GPIO
JTAG
SPI or BSC (2)
GPIO (17)
Crytography
Engine
AXI
DMA
I2S
I2S (2)
Audio
RMII/MII
WLAN
Audio PLL
32 kHz
IEEE 802.11 MAC
APPS Domain
Always-On Domain
External LPO
RF Switch Controls
37.4 MHz Crystal
1 x 1, IEEE 802.11n PHY
2.4 GHz and 5 GHz Radio
REG_ON
HIB_REG_ON_IN
VBAT
AXI-to-AXI
Bridge
2.4 GHz
5 GHz
LNA
PA LNA
PA
AXI
RTC
PS
TX
Switch
PMU
PS RAM
SR_Eng
VIO
WRF_PAOUT_5G
WRF_RFIN_5G
WRF_PAOUT_2G
WRF_RFIN_2G
BSC = Broadcom Serial Control. An I2C-compatible interface.
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 2
BROADCOM CONFIDENTIAL
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