h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 295
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h8s-2172
Manufacturer Part Number
h8s-2172
Description
Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2172.pdf
(570 pages)
- Current page: 295 of 570
- Download datasheet (5Mb)
This LSI has an on-chip 8-bit timer module with two channels operating on the basis of an 8-bit
counter. The 8-bit timer module can be used to count external events and be used as a
multifunction timer in a variety of applications, such as generation of counter reset, interrupt
requests, and pulse output with an arbitrary duty cycle using a compare-match signal with two
registers.
9.1
• Selection of four clock sources
• Selection of three ways to clear the counters
• Timer output control by a combination of two compare match signals
• Provision for cascading of two channels (TMR_0 and TMR_1)
• Three independent interrupts
The counters can be driven by one of three internal clock signals (φ/8, φ/64, or φ/8192) or an
external clock input
The counters can be cleared on compare match A or B, or by an external reset signal
The timer output signal in each channel is controlled by a combination of two independent
compare match signals, enabling the timer to generate output waveforms with an arbitrary duty
cycle or PWM output
Operation as a 16-bit timer is possible, using TMR_0 for the upper 8 bits and TMR_1 for the
lower 8 bits (16-bit count mode)
TMR_1 can be used to count TMR_0 compare matches (compare match count mode)
Compare match A and B and overflow interrupts can be requested independently
Features
Section 9 8-Bit Timer (TMR)
Rev. 2.00, 03/04, page 263 of 534
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