HD6417144 RENESAS [Renesas Technology Corp], HD6417144 Datasheet - Page 603

• Manufacturer Part Number: HD6417144
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

This LSI has an on-chip compare match timer (CMT) comprising two 16-bit timer channels. The
CMT has 16-bit counters and can generate interrupts at specified intervals.
16.1
The CMT has the following features:
• Four kinds of counter input clock can be selected
• Interrupt sources
• Module standby mode can be set
Figure 16.1 shows a block diagram of the CMT.
TIMCMT0A_000220020700
⎯ One of four internal clocks (Pφ/8, Pφ/32, Pφ/128, Pφ/512) can be selected independently
⎯ A compare match interrupt can be requested independently for each channel.
[Legend]
CMSTR: Compare match timer start register
CMCSR: Compare match timer control/status register
CMCOR: Compare match timer constant register
CMCNT: Compare match timer counter
CMI:
for each channel.
Features
Compare match interrupt
Section 16 Compare Match Timer (CMT)
Control circuit
CMI0
Figure 16.1 CMT Block Diagram
Pφ/8
Clock selection
Module bus
Pφ/32
Pφ/128
Pφ/512
CMT
Rev.4.00 Mar. 27, 2008 Page 559 of 882
Control circuit
CMI1
16. Compare Match Timer (CMT)
Internal bus
Pφ/8
Clock selection
interface
Pφ/32
REJ09B0108-0400
Bus
Pφ/128
Pφ/512