Cypress CYW43353 - Page 64

Document No. 002-14949 Rev. *E Page 64 of 113
PRELIMINARY
CYW43353
Table 20. Multiplexed GPIO Signals
Pin Name Type Description
UART_CTS_N I Host UART clear to send.
UART_RTS_N O Device UART request to send.
UART_RXD I Device UART receive data.
UART_TXD O Host UART transmit data.
PCM_IN I PCM data input.
PCM_OUT O PCM data output.
PCM_SYNC I/O PCM sync signal, can be master (output) or slave (input).
PCM_CLK I/O PCM clock, can be master (output) or slave (input).
GPIO[7:0] I/O General-purpose I/O.
A_GPIO[7:0] I/O A group general-purpose I/O.
I2S_MSDO O
I
2
S master data output.
I2S_MWS O
I
2
S master word select.
I2S_MSCK O
I
2
S master clock.
I2S_SSCK I
I
2
S slave clock.
I2S_SSDO O
I
2
S slave data output.
I2S_SWS I
I
2
S slave word select.
I2S_SSDI/MSDI I
I
2
S slave/master data input.
STATUS O Signals Bluetooth priority status.
TX_CON_FX I WLAN-BT coexist. Transmission confirmation; permission for BT to transmit.
RF_ACTIVE O WLAN-BT coexist. Asserted (logic high) during local BT RX and TX slots.
LINK_IND O BT receiver/transmitter link indicator.
CLK_REQ O WLAN/BT clock request output.
SF_SPI_CLK O SFlash SCLK: serial clock (output from master).
SF_MISO I SFlash MISO; SOMI: master input, slave output (output from slave).
SF_MOSI O SFlash MOSI; SIMO: master output, slave input (output from master).
SF_SPI_CSN O SFlash SS: slave select (active low, output from master).