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Renesas H8S/2111B User Manual

Page 219

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Rev. 1.00, 05/04, page 185 of 544

Figures 10.1 to 10.3 show block diagrams of 8-bit timers.

External clock
sources

Internal clock
sources

TMR_0
φ/2, φ/8, φ/32, φ/64, φ/256, φ/1024

Clock 1
Clock 0

Compare-match A1
Compare-match A0

Clear 1

Interrupt signals

CMIA0

CMIB0

OVI0

CMIA1

CMIB1

OVI1

TMO0
TMRI0

Internal bus

TCORA_0

Comparator A_0

Comparator B_0

TCORB_0

TCSR_0

TCR_0

TMCI0
TMCI1

TCNT_0

Overflow 1
Overflow 0

Compare-match B1
Compare-match B0

TMO1
TMRI1

Clock select

Control logic

Clear 0

TMR_1
φ/2, φ/8, φ/64, φ/128, φ/1024, φ/2048

[Legend]

TCORA_0:
TCORB_0:
TCNT_0:
TCSR_0:
TCR_0:

Time constant register A_0
Time constant register B_0
Timer counter_0
Timer control/status register_0
Timer control register_0

TCORA_1:
TCORB_1:
TCNT_1:
TCSR_1:
TCR_1:

Time constant register A_1
Time constant register B_1
Timer counter_1
Timer control/status register_1
Timer control register_1

TCORA_1

Comparator A_1

TCNT_1

Comparator B_1

TCORB_1

TCSR_1

TCR_1

Figure 10.1 Block Diagram of 8-Bit Timer (TMR_0 and TMR_1)

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