DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 713

• Manufacturer Part Number: DS72030W200FPV
• Description: MPU, 32BIT, SH7203, ROMLESS, 240QFP
• Manufacturer: Renesas Electronics America
• Series: SH7200r

Specifications of DS72030W200FPV

• Core Size: 32bit
• Program Memory Size: 32KB
• Cpu Speed: 200MHz
• Digital Ic Case Style: QFP
• No. Of Pins: 240
• Supply Voltage Range: 1.1V To 1.3V
• Operating Temperature Range: -20°C To +85°C
• Svhc: No SVHC
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.3.3
WRCSR is an 8-bit readable/writable register that controls output of the internal reset signal
generated by watchdog timer counter (WTCNT) overflow.
Note: The method for writing to WRCSR differs from that for other registers to prevent
Bit
7
6
5
4 to 0
erroneous writes. See section 13.3.4, Notes on Register Access, for details.
Watchdog Reset Control/Status Register (WRCSR)
Bit Name
WOVF
RSTE
RSTS
⎯
Initial value:
Initial
Value
0
0
0
All 1
R/W:
Bit:
WOVF RSTE
R/(W) R/W
7
0
R/W
R/(W)
R/W
R/W
R
6
0
RSTS
R/W
Description
Watchdog Timer Overflow
Indicates that the WTCNT has overflowed in
watchdog timer mode. This bit is not set in interval
timer mode.
0: No overflow
1: WTCNT has overflowed in watchdog timer mode
[Clearing condition]
•
Reset Enable
Selects whether to generate a signal to reset the LSI
internally if WTCNT overflows in watchdog timer
mode. In interval timer mode, this setting is ignored.
0: Not reset when WTCNT overflows*
1: Reset when WTCNT overflows
Note: * LSI not reset internally, but WTCNT and
Reset Select
Selects the type of reset when the WTCNT overflows
in watchdog timer mode. In interval timer mode, this
setting is ignored.
0: Power-on reset
1: Manual reset
Reserved
These bits are always read as 1. The write value
should always be 1.
5
0
When 0 is written to WOVF after reading WOVF
R
4
1
-
WTCSR reset within WDT.
R
3
1
-
Rev. 3.00 Sep. 28, 2009 Page 681 of 1650
R
2
1
-
Section 13 Watchdog Timer (WDT)
R
1
1
-
R
0
1
-
REJ09B0313-0300