BCM43455 Preliminary Data Sheet
Overview
Figure 2: BCM43455 Block Diagram
SECI UART and GCI GPIOs
GCI
WL_HOST_WAKE
UART
WL_DEV_WKAE
JTAG
BTFM
WLAN
Other GPIOs
TCM
RAM 800 KB
ROM 704 KB
BT_HOST_WAKE
BT_DEV_WAKE
UART
UART
RAM
ROM
WLAN RAM Sharing
SDIOD
SDIO 3.0
I2S
USB 1.1
PCM
PCM
I2S
ARMCM3
ARMCR4
Other GPIOs
USB
Registers
WLAN
Master Slave
AXI2ANB
AHB2AXI
PCIE
PCIE
WLAN BT Access
WL_REG_ON
BT_REG_ON
DMA
Chip Common
(OTP)
RX/TX
BLE
AXI2APB
PMU
JTAG Master
GPIO
Timers
WD
LCU
GCI Coex I/F
DOT11MAC (D11)
VBAT
APU
Shared LNA
Control and Other
Coex I/F
RF
Switch
Controls
1×1 IEEE 802.11ac PHY (Rev. 4)
BlueRF
Pause
Modem
BT RF
2.4 GHz/5 GHz
TINY Radio
XTAL
FM RX
CLB
FM Analog
Audio
32 kHz
External
LPO
BT PA
5 GHz
PA Driver
Shared
2.4 LNA
LNA
LNA
5 GHz
PA
2.4 GHz
PA
WLAN:
5 GHz: iPA, iLNA, eLG, eTR
2 GHz: iPA, iLNA, eLG, iTR
BT:
eTR
Shared LNA, iTR
Diplexer
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 20
BROADCOM CONFIDENTIAL
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