Document No. 002-14949 Rev. *E
PRELIMINARY
CYW43353
Figure 1. CYW43353 Block Diagram
Bluetooth
WLAN
UART
I2S
PCM
P
o
rt
C
o
n
tro
l
Registers
DMA
JTAG
Master
GPIO
Timers
WD
Pause
AHB
2
AP
B
A
H
B Bu
s M
a
tr
ix
RAM
ROM
ARMCM3
WLAN
Master
Slave
RX/TX
BLE
LCU
APU
BlueRF
PMU
CLB
FEM or
SP3T
FEM or
SPDT
Diplexer
Modem
Bluetooth RF
2.4 GHz/5 GHz 802.11ac
Dual-Band Radio
1 x 1 802.11ac PHY
DOT11MAC (D11)
Chip
Common
OTP
N
IC
-301 A
X
I B
a
ck
p
lan
e
AXI2AHB
AHB2AXI
ARMCR4
TCM
RAM768KB
ROM640KB
SDIOD
AXI2APB
GCI
SECI UART
and GCI-GPIOs
WLAN RAM
Sharing
WLAN
BT Access
GCI Coex I/F
Shared LNA Control
and Other Coex I/Fs
VBAT
WL_REG_ON
BT_REG_ON
BT_HOST_WAKE
BT_DEV_WAKE
UART
PCM
I
2
S
Other GPIOs
BT
PA
32 kHz External LPO
XTAL
RF Switch Controls
SDIO 3.0
WL_HOST_WAKE
WL_DEV_WAKE
JTAG
Other GPIOs
2.4 GHz
5 GHz