p2125vps20 Renesas Electronics Corporation., p2125vps20 Datasheet - Page 344
p2125vps20
Manufacturer Part Number
p2125vps20
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.P2125VPS20.pdf
(700 pages)
- Current page: 344 of 700
- Download datasheet (5Mb)
Section 14 Watchdog Timer (WDT)
• TCSR_1
Rev. 1.00 Sep. 21, 2006 Page 306 of 658
REJ09B0310-0100
Bit
7
6
5
4
3
Bit Name
OVF
WT/IT
TME
PSS
RST/NMI 0
Initial
Value
0
0
0
0
R/W
R/(W)*
R/W
R/W
R/W
R/W
1
Timer Enable
Description
Overflow Flag
Indicates that TCNT has overflowed (changes from H'FF to
H'00).
[Setting condition]
When TCNT overflows (changes from H'FF to H'00)
When internal reset request generation is selected in
watchdog timer mode, OVF is cleared automatically by the
internal reset.
[Clearing conditions]
•
•
Timer Mode Select
Selects whether the WDT is used as a watchdog timer or
interval timer.
0: Interval timer mode
1: Watchdog timer mode
When this bit is set to 1, TCNT starts counting.
When this bit is cleared, TCNT stops counting and is
initialized to H'00.
Prescaler Select
Selects the clock source to be input to TCNT.
0: Counts the divided cycle of φ–based prescaler (PSM)
1: Counts the divided cycle of φSUB–based prescaler (PSS)
Reset or NMI
Selects to request an internal reset or an NMI interrupt when
TCNT has overflowed.
0: An NMI interrupt is requested
1: An internal reset is requested
When TCSR is read when OVF = 1*
OVF
When 0 is written to TME
2
, then 0 is written to
Related parts for p2125vps20
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
OSC 100.0000MHZ 2.5V LVPECL SMD
Manufacturer:
Connor-Winfield
Datasheet:
Part Number:
Description:
OSC 125.0000MHZ 2.5V LVPECL SMD
Manufacturer:
Connor-Winfield
Datasheet:
Part Number:
Description:
OSC 155.5200MHZ 2.5V LVPECL SMD
Manufacturer:
Connor-Winfield
Datasheet:
Part Number:
Description:
OSC 156.2500MHZ 2.5V LVPECL SMD
Manufacturer:
Connor-Winfield
Datasheet:
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: