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12.2 Signal Descriptions
The signal name, type, and description of each pin in the CYW43353 is listed in
pin directions (I/O = bidirectional, I = input, 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 15. WLBGA Signal Descriptions
WLBGA Ball#
N7
N5
N12
N8
N11
J7
H7
F12
F11
E12
E11
D12
F8
H9
G7
E10
F5
Note: These signals can also have alternate functionality depending on host interface mode. Refer to
Signal Functions,"
for additional details.
B11
B12
B10
C10
D10
C11
Document Number: 002-14949 Rev. *G
PRELIMINARY
Signal Name
WLAN and Bluetooth RF Signal Interface
WRF_RFIN_2G
BT_RF_TX
WRF_RFIN_5G
WRF_RFOUT_2G
WRF_RFOUT_5G
WRF_TSSI_A
WRF_RES_EXT/
WRF_GPIO_OUT/WRF_TSSI_G
RF Switch Control Lines
RF_SW_CTRL_0
RF_SW_CTRL_1
RF_SW_CTRL_2
RF_SW_CTRL_3
RF_SW_CTRL_4
RF_SW_CTRL_5
RF_SW_CTRL_6
RF_SW_CTRL_7
RF_SW_CTRL_8
RF_SW_CTRL_9
WLAN SDIO Bus Interface
SDIO_CLK
SDIO_CMD
SDIO_DATA_0
SDIO_DATA_1
SDIO_DATA_2
SDIO_DATA_3
Table
15. The symbols shown under Type indicate
Type
I
2.4 GHz Bluetooth and WLAN receiver shared input.
O
Bluetooth PA output.
I
5 GHz WLAN receiver input.
O
2.4 GHz WLAN PA output.
O
5 GHz WLAN PA output.
I
5 GHz TSSI input from an optional external power amplifier/power
detector.
I/O
GPIO or 2.4 GHz TSSI input from an optional external power
amplifier/power detector.
O
Programmable RF switch control lines. The control lines are
programmable via the driver and NVRAM file.
O
O
O
O
O
O
O
O
O
I
SDIO clock input.
I/O
SDIO command line.
I/O
SDIO data line 0.
I/O
SDIO data line 1.
I/O
SDIO data line 2.
I/O
SDIO data line 3.
CYW43353
Description
Table 21, "CYW43353 GPIO/SDIO Alternative
Page 57 of 113
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