BCM4356XKUBGT Datasheet, PDF (71/195 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
SPROM Interface
SPROM Interface
Various hardware configuration parameters may be stored in an external SPROM instead of the OTP.
The SPROM is read by system software after device reset. In addition, depending on the board
design, customer-specific parameters may be stored in SPROM.
The four SPROM control signals —SPROM_CS, SPROM_CLK, SPROM_MI, and SPROM_MO are
multiplexed on the SDIO interface (see Table 26: “GPIO Alternative Signal Functions,” on page 121 for
additional details). By default, the SPROM interface supports 2 Kbit serial SPROMs, and it can also support
4 Kbit and 16 Kbit serial SPROMs by using the appropriate strapping option.
Broadcom^®
May 8, 2015 • 4356-DS103-R
BROADCOM CONFIDENTIAL
Page 70