Customer Information
WAN_0264
w
September 2011, Rev 1.0
Customer Information
3
DEVELOPMENT MODE HARDWARE SET-UP
ICE
The InstantConfig™ EEPROM (ICE) allows system designers to modify and experiment with different
start-up and control settings on the WM832x. This is called Development Mode. When an ON
sequence is scheduled the WM832x reads the ICE contents. It then copies the ICE settings into the
WM832x register map and applies them during the start-up sequence. The ICE can be programmed
using WISCE
TM
. (See section: How to program the ICE using WISCE
TM
).
ICE HARDWARE SET-UP
J11 - ICE is powered from LDO12 (VPMIC) (the alternative is USB_DVDD).
J10 - SCLK2 and SDA2 are pulled up to connect the ICE to the device and place it into Development
Mode. A high on SCLK2 indicates to the device that it must go into Development Mode. This
essentially means applying the settings contained in the external ICE (EEPROM).
J11
J10
‐
A
&
J10
‐
B
J11
J10
‐
A
&
J10
‐
B
