Strapping Options
BCM43907 Preliminary Data Sheet
Strapping Options
Table 11 provides the strapping options.
Table 11: Strapping Options
Default
Internal Pull
During Strap Description
Pin Name
Strap
Bump #
GPIO_1
GSPI_MODE
142
95
PD
PD
PD
PD
PD
PD
Enable gSPI interface
Boot from SoC SROM or SoC SRAM
GPIO_7
WCPU_BOOT_MODE
ACPU_BOOT_MODE
SDIO_MODE
GPIO_11
140
131
145
207
Boot from tightly coupled memory (TCM) ROM or TCM RAM
Select either SDIO host mode or SDIO device mode
Enable PMU voltage trimming
GPIO_13
GPIO_15
RF_SW_CTRL_5
VTRIM_EN
DAP_CLK_SEL
Select XTAL clock or the test clock (tck) for the debug access port
(DAP)
RF_SW_CTRL_7
RSRC_INIT_MODE
201
PD
PMU resource initialization mode selection
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 66
BROADCOM CONFIDENTIAL
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