h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 295

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

The timer output from the TMO pin can be freely controlled by the compare-match signal B and
the settings of output select bits OS1 and OS0 in TCSR.
The initial value of TCORB is H'FF.
11.3.4
TCR selects the TCNT clock source and the time at which TCNT is cleared, and controls interrupt
requests.
Bit
7
6
5
4
3
Bit Name
CMIEB
CMIEA
OVIE
CCLR1
CCLR0
Timer Control Registers (TCR)
Initial
Value
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Description
Compare-Match Interrupt Enable B
Selects whether the CMFB interrupt request (CMIB) is
enabled or disabled when the CMFB flag in TCSR is set
to 1.
0: CMFB interrupt request (CMIB) is disabled
1: CMFB interrupt request (CMIB) is enabled
Compare-Match Interrupt Enable A
Selects whether the CMFA interrupt request (CMIA) is
enabled or disabled when the CMFA flag in TCSR is set
to 1.
0: CMFA interrupt request (CMIA) is disabled
1: CMFA interrupt request (CMIA) is enabled
Timer Overflow Interrupt Enable
Selects whether the OVF interrupt request (OVI) is
enabled or disabled when the OVF flag in TCSR is set to
1.
0: OVF interrupt request (OVI) is disabled
1: OVF interrupt request (OVI) is enabled
Counter Clear 1 and 0
These bits select the method by which TCNT is cleared
00: Clearing is disabled
01: Cleared on compare-match A
10: Cleared on compare-match B
11: Cleared on rising edge of external reset input
Rev. 3.00 Oct 04, 2005 page 255 of 598
Section 11 8-Bit Timers
REJ09B0155-0300