Fujitsu FR81S User Manual
CHAPTER 21: 32-BIT FREE-RUN TIMER
1. Overview
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER
: 32-BIT FREE-RUN TIMER
FUJITSU SEMICONDUCTOR CONFIDENTIAL
3
1. Overview
This section explains the overview of the 32-bit free-run timer.
The 32-bit free-run timer consists of a 32-bit up counter and a control circuit. The free-run timer can be used
in combination with input capture and output compare.
Figure 1-1 Block Diagram (Overview)
External clock
(FRCK pin)
Clear
Up counter
Compare clear register
Peripheral clock
(PCLK)
Overflow
To input capture
To output compare
Interrupt
Compare
circuit
MB91520 Series
MN705-00010-1v0-E
798