BCM4354 datasheet(49/165 Pages) CYPRESS

Part #	BCM4354

Description	Single-Chip 5G Wi-Fi IEEE 802.11ac 2횞2 MAC/Baseband/Radio with Integrated Bluetooth 4.1 and FM Receiver

PDF	165 Pages

Scroll/Zoom	100%

Manufacturer	CYPRESS [Cypress Semiconductor]

Direct Link	http://www.cypress.com

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49 / 165 page

Document Number: 002-14809 Rev. *J

Page 49 of 165

CYW4354

9.4 External Coexistence Interface

An external handshake interface is available to enable signaling between the device and an external co-located wireless device, such

as GPS, or LTE, to manage wireless medium sharing for optimal performance.

Figure 24 and Figure 25 on page 49 show the LTE coexistence interface (including UART) for each CYW4354 package type. See

Table 27 on page 97 for further details on multiplexed signals, such as the GPIO pins.

See Table 16 on page 40 for the UART baud rate.

Figure 24. Cypress GCI Mode LTE Coexistence Interface

Figure 25. Legacy 3-Wire LTE Coexistence Interface

WLAN

GCI

LTE/IC

UART_IN

UART_OUT

BTFM

Notes:

 OR’ing to generate ISM_RX_PRIORITY for ERCX_TXCONF or BT_RX_PRIORITY is achieved by

setting the GPIO mask registers appropriately.

 SECI_OUT and SECI_IN are multiplexed on the GPIOs.

SECI_OUT

SECI_IN

CYW4354

Note: OR’ing to generate WCN_PRIORITY FOR ERCX_TXCONF or BT_RX_PRIORITY is achieved by

setting the GPIO mask registers appropriately.

WLAN

GCI

LTE/IC

BT/FM

WCN_PRIORITY

GCI_GPIO_2

GCI_GPIO_1

GCI_GPIO_0

MWS_RX, LTE_PRIORITY

LTE_FRAME_SYNC

CYW4354

BCM4354 Datasheet(PDF) 49 Page - Cypress Semiconductor