BCM4356XKUBGT Datasheet, PDF (123/195 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1, FM Receiver, and Wireless Charging

BCM4356 Advance Data Sheet
GPIO Alternative Signal Functions
Table 26: GPIO Alternative Signal Functions (Cont.)
Test Mode FAST UART SPROM
Miscellaneous-0
BSC (JTAG_SEL = 1)
GCI
Miscellaneous- Miscellaneous-
1
2
UART
Pin
Names
0
2
4
GPIO_14 TEST_GPIO_14 FAST_UART –
_RTS_OUT
Function Select
5
6
7
8
–
–
GCI_GPIO_2 –
GPIO_15 TEST_GPIO_15 FAST_UART –
_CTS_IN
–
–
Note:
1. GPIO_0 and WL_DEV_WAKE signals are selected by using software.
2. SDIO_PADVDDIO = 1 (not in straps table) is set to 3.3V by default for all packages.
3. GPIO_7 can be used as WL_LED in WLBGA package.
GCI_GPIO_3 –
9
–
–
3
UART_DBG
_RX
UART_DBG
_TX
PWDOG _Additional
10 Functionality
–
–
–
–
a. For all new designs, use GPIO_6 for SECI_IN instead of GPIO_4. For existing designs, GPIO_4 can be still used for SECI_IN provided the strapping
requirements discussed in “WLAN/BT GPIO Signals and Strapping Options” on page 120 are fully satisfied.
Table 27 defines status for all BCM4356 GPIOs based on the tristate test mode.
Test Mode
TRISTATE_IND
TRISTATE_PDN
TRISTATE_PUP
TRISTATE
Table 27: GPIO Status Vs. Test Modes
Function Select
12
13
14
15
Status for All GPIOs
Input disable
Pull down
Pull up
Tristate
Broadcom^®
May 8, 2015 • 4356-DS103-R
BROADCOM CONFIDENTIAL
Page 122