upd78f0114hgb-8es-a Renesas Electronics Corporation., upd78f0114hgb-8es-a Datasheet - Page 210
upd78f0114hgb-8es-a
Manufacturer Part Number
upd78f0114hgb-8es-a
Description
8-bit Single-chip Microcontrollers
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD78F0114HGB-8ES-A.pdf
(505 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F0114HGB-8ES-A
Manufacturer:
PANASONIC
Quantity:
720
- Current page: 210 of 505
- Download datasheet (3Mb)
9.4.2 Interval timer operation
the preset count value.
(WTM). When bit 0 (WTM0) of the WTM is set to 1, the count operation starts. When this bit is cleared to 0, the count
operation stops.
210
WTM6
The watch timer operates as interval timer which generates interrupt requests (INTWTI) repeatedly at an interval of
The interval time can be selected with bits 4 to 6 (WTM4 to WTM6) of the watch timer operation mode register
Remark
Remark
0
0
0
0
1
1
1
1
Count clock
Watch timer
interrupt INTWT
Interval timer
interrupt INTWTI
WTM5
0
0
1
1
0
0
1
1
f
f
f
f
n:
Figures in parentheses are for operation with f
X
XT
W
W
: High-speed system clock oscillation frequency
: Watch timer clock frequency
: Watch timer clock frequency
: Subsystem clock oscillation frequency
5-bit counter
The number of times of interval timer operations
WTM4
0
1
0
1
0
1
0
1
Figure 9-3. Operation Timing of Watch Timer/Interval Timer
2
2
2
2
2
2
2
2
4
5
6
7
8
9
10
11
/f
/f
/f
/f
/f
/f
/f
/f
W
W
W
W
W
W
W
W
Start
Interval Time
0H
Table 9-5. Interval Timer Interval Time
Interrupt time of watch timer (0.5 s)
Interval time
(T)
CHAPTER 9 WATCH TIMER
User’s Manual U16961EJ4V0UD
n
T
488 s
977 s
1.95 ms
3.91 ms
7.81 ms
15.6 ms
31.3 ms
62.5 ms
f
W
XT
= 32.768 kHz (WTM7 = 1, WTM3, WTM2 = 0, 0).
= 32.768 kHz (WTM7 = 1)
When Operated at
Overflow
Interrupt time of watch timer (0.5 s)
T
n
205 s
410 s
820 s
1.64 ms
3.28 ms
6.55 ms
13.1 ms
26.2 ms
T
f
X
= 10 MHz (WTM7 = 0)
When Operated at
Overflow
Related parts for upd78f0114hgb-8es-a
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: