wm8351 Wolfson Microelectronics plc, wm8351 Datasheet - Page 114

• Manufacturer Part Number: wm8351
• Description: Wolfson Audioplus? Stereo Codec With Power Management
• Manufacturer: Wolfson Microelectronics plc

WM8351
w
The configuration bits include:
•
•
•
•
•
Typically, the final step in the sequence is a write to register R6, in order to:
•
•
•
Duration control bits for the /RST reset signal (RSTB_TO)
GPIO pull-up / pull-down settings and debounce times (GPn_PD, GPn_PU, GPn_DB and
GP_DBTIME)
Alternate function and input/output selection for GPIO pins (GPn_FN, GPn_DIR and GPn_CFG)
Voltage settings for DC-DC converters and LDO regulators (DCn_VSEL and LDOn_VSEL)
Time slots for automatic start of all DC-DC converters, all LDO regulators and the Current Limit
Switch during startup (DCn_ENSLOT, LDOn_ENSLOT and LS_ENSLOT). Note that supplies
can be programmed to not start up automatically by setting the respective _ENSLOT bits to
0000.
Select the WM8351 device address on the primary control interface, using the DEV_ADDR bits.
Allow the WM8351 to proceed to startup. This is achieved by setting the CONFIG_DONE bit
(R6 bit 12) to 1.
Switch the control interface back to the primary interface (if desired), so that a host processor
can communicate with the WM8351. This is achieved by setting USE_DEV_PINS (R6 bit 15) to
0.
PD, June 2009, Rev 4.1
Production Data
114