upd78f9211grt2-jjg-a ETC-unknow, upd78f9211grt2-jjg-a Datasheet - Page 87

• Manufacturer Part Number: upd78f9211grt2-jjg-a
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: ETC-unknow

Cautions 1. The timer operation must be stopped before writing to bits other than the OVF00 flag.
Address: FF60H
Symbol
TMC00
TMC003 TMC002 TMC001
OVF00
0
1
0
0
0
0
1
1
1
1
Overflow not detected
Overflow detected
7
0
2. If the timer is stopped, timer counts and timer interrupts do not occur, even if a signal is input to
3. Except when TI000 pin valid edge is selected as the count clock, stop the timer operation before
4. Set the valid edge of the TI000 pin with bits 4 and 5 of prescaler mode register 00 (PRM00) after
5. If the clear & start mode entered on a match between TM00 and CR000, clear & start mode at the
6. Even if the OVF00 flag is cleared before the next count clock is counted (before TM00 becomes
7. The capture operation is performed at the fall of the count clock. An interrupt request input
0
0
1
1
0
0
1
1
the TI000/TI010 pins.
setting STOP mode or system clock stop mode; otherwise the timer may malfunction when the
system clock starts.
stopping the timer operation.
valid edge of the TI000 pin, or free-running mode is selected, when the set value of CR000 is
FFFFH and the TM00 value changes from FFFFH to 0000H, the OVF00 flag is set to 1.
0001H) after the occurrence of a TM00 overflow, the OVF00 flag is re-set newly and clear is
disabled.
(INTTM0n0), however, occurs at the rise of the next count clock.
6
0
After reset: 00H
Figure 6-5. Format of 16-Bit Timer Mode Control Register 00 (TMC00)
0
1
0
1
0
1
0
1
5
0
Operation stop
(TM00 cleared to 0)
Free-running mode
Clear & start occurs on valid
edge of TI000 pin
Clear & start occurs on match
between TM00 and CR000
4
0
Operating mode and clear
TMC003
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
mode selection
R/W
3
TMC002
Overflow detection of 16-bit timer counter 00 (TM00)
2
User’s Manual U16994EJ3V0UD
TMC001
1
OVF00
<0>
No change
Match between TM00 and
CR000 or match between
TM00 and CR010
Match between TM00 and
CR000, match between TM00
and CR010 or TI000 pin valid
edge
Match between TM00 and
CR000 or match between
TM00 and CR010
Match between TM00 and
CR000, match between TM00
and CR010 or TI000 pin valid
edge
TO00 inversion timing selection
−
Not generated
< When operating as compare
register >
Generated on match between
TM00 and CR000, or match
between TM00 and CR010
< When operating as capture
register >
Generated on TI000 pin and
TI010 pin valid edge
Interrupt request generation
87