Fujitsu FR81S User Manual
CHAPTER 51: TIMING PROTECTION UNIT
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : TIMING PROTECTION UNIT
FUJITSU SEMICONDUCTOR CONFIDENTIAL
23
5.2. Global Prescaler
The section explains the global prescaler.
The global prescaler is a common prescaler used with all timers of TPU. The global prescaler divides
HCLK (input clock of TPU) according to a set value of TPUCFG.GLBPS[5:0]. The value of division can be
set by 1 to 64.
The global prescaler function controls operation by the TPUCFG.GLBPSE bit. The global prescaler
function is enabled by writing one in TPUCFG.GLBPSE and it is disabled by writing 0 in
TPUCFG.GLBPSE.
When TPUCFG.GLBPSE=0, the prescaler function is disabled and the clock of all timers doesn't become
valid.
Please, update TPUCFG.GLBPS[5:0] after setting disable the global prescaler function
(TPUCFG.GLBPE=0).
MB91520 Series
MN705-00010-1v0-E
2190