Datasheet

Section 13 8-Bit Timers (TMR)
Page 828 of 1408 R01UH0309EJ0500 Rev. 5.00
Sep 24, 2012
H8S/2456, H8S/2456R, H8S/2454 Group
Table 13.3 Clock Input to TCNT and Count Condition
TCR TCCR
Channel
Bit 2
CKS2
Bit 1
CKS1
Bit 0
CKS0
Bit 1
ICKS1
Bit 0
ICKS0 Description
TMR_0 0 0 0 ⎯ ⎯ Clock input disabled
0 0 1 0 0 Internal clock, counted at rising edge of φ/8
0 1 Internal clock, counted at rising edge of φ/2
1 0 Internal clock, counted at falling edge of φ/8
1 1 Internal clock, counted at falling edge of φ/2
0 1 0 0 0 Internal clock, counted at rising edge of φ/64
0 1 Internal clock, counted at rising edge of φ/32
1 0 Internal clock, counted at falling edge of φ/64
1 1 Internal clock, counted at falling edge of φ/32
0 1 1 0 0 Internal clock, counted at rising edge of φ/8192
0 1 Internal clock, counted at rising edge of φ/1024
1 0 Internal clock, counted at falling edge of φ/8192
1 1 Internal clock, counted at falling edge of φ/1024
1 0 0 ⎯ ⎯ Counted at TCNT_1 overflow signal
*
TMR_1 0 0 0 ⎯ ⎯ Clock input disabled
0 0 1 0 0 Internal clock, counted at rising edge of φ/8
0 1 Internal clock, counted at rising edge of φ/2
1 0 Internal clock, counted at falling edge of φ/8
1 1 Internal clock, counted at falling edge of φ/2
0 1 0 0 0 Internal clock, counted at rising edge of φ/64
0 1 Internal clock, counted at rising edge of φ/32
1 0 Internal clock, counted at falling edge of φ/64
1 1 Internal clock, counted at falling edge of φ/32
0 1 1 0 0 Internal clock, counted at rising edge of φ/8192
0 1 Internal clock, counted at rising edge of φ/1024
1 0 Internal clock, counted at falling edge of φ/8192
1 1 Internal clock, counted at falling edge of φ/1024
1 0 0 ⎯ ⎯ Counted at TCNT_0 compare match A
*