h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 327

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

10.1
The H8S/2646 Group has an on-chip 16-bit timer pulse unit (TPU) that comprises six 16-bit timer
channels.
10.1.1
• Maximum 16-pulse input/output
• Selection of 8 counter input clocks for each channel
• The following operations can be set for each channel:
• Buffer operation settable for channels 0 and 3
• Phase counting mode settable independently for each of channels 1, 2, 4, and 5
• Cascaded operation
• Fast access via internal 16-bit bus
 A total of 16 timer general registers (TGRs) are provided (four each for channels 0 and 3,
 TGRC and TGRD for channels 0 and 3 can also be used as buffer registers
 Waveform output at compare match: Selection of 0, 1, or toggle output
 Input capture function: Selection of rising edge, falling edge, or both edge detection
 Counter clear operation: Counter clearing possible by compare match or input capture
 Synchronous operation:
 PWM mode:
 Input capture register double-buffering possible
 Automatic rewriting of output compare register possible
 Two-phase encoder pulse up/down-count possible
 Channel 2 (channel 5) input clock operates as 32-bit counter by setting channel 1 (channel
 Fast access is possible via a 16-bit bus interface
and two each for channels 1, 2, 4, and 5), each of which can be set independently as an
output compare/input capture register
Multiple timer counters (TCNT) can be written to simultaneously,
Simultaneous clearing by compare match and input capture possible,
Register simultaneous input/output possible by counter synchronous operation
Any PWM output duty can be set,
Maximum of 15-phase PWM output possible by combination with synchronous operation
4) overflow/underflow
Overview
Features
Section 10 16-Bit Timer Pulse Unit (TPU)
Rev. 5.00 Sep 22, 2005 page 301 of 1136
Section 10 16-Bit Timer Pulse Unit (TPU)
REJ09B0257-0500