CY4636 WirelessUSB™ LP Keyboard Mouse Reference Design Kit User Guide, Doc. # 001-70355 Rev. *A
49
Code Examples
■
CLKOUT Source
This parameter is set to Internal (24 MHz).
■
Low V Detect
This parameter is set to 4.44-4.53 V.
■
V Reset
This parameter is set to 4.4 V.
■
VReg
This parameter is set to 'Disable' here. The VReg is enabled in the application code to implement
the hard reset to the LP radio.
■
V Keep-alive
This parameter is set to Disable.
■
Watchdog Enable
This parameter should be set to Enable, but may be set to Disable for debug purposes.
SPI Master User Module.
The SPI Master User Module is used by firmware to communicate with
the LP radio. The interrupt API to this module is not used.
USB Device User Module.
The USB Device User Module handles the enumeration and data trans-
fers over USB endpoints.
1 Millisecond Interval Timer User Module.
The 1 millisecond Interval Timer User Module is used
to determine when a USB suspend has occurred, LED on/off duration timing, RSSI checking, and
others.
Flash Security.
The bridge project within PSoC Designer has a file called
FlashSecurity.txt
. This file
specifies access rules to blocks of the Flash ROM. This file is shipped with a single change from its
default configuration. The block starting at address 0x1FC0 has been changed from W: Full (Write
protected) to U: Unprotected. This location of Flash has been dedicated to saving non-volatile ses-
sion key for the encrypt code module.