HD6417032F20V Renesas Electronics America, HD6417032F20V Datasheet - Page 367
HD6417032F20V
Manufacturer Part Number
HD6417032F20V
Description
SH1 ROMLESS LEAD FREE
Manufacturer
Renesas Electronics America
Series
SuperH® SH7030r
Datasheet
1.HD6417034AFI20.pdf
(689 pages)
Specifications of HD6417032F20V
Core Processor
SH-1
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
112-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417032F20V
Manufacturer:
TI
Quantity:
201
- Current page: 367 of 689
- Download datasheet (5Mb)
12.1
The SuperH microcomputer has a one-channel watchdog timer (WDT) for monitoring system
operations. If the system becomes uncontrolled and the timer counter overflows without being
rewritten correctly by the CPU, an overflow signal (WDTOVF) is output externally. The WDT
can simultaneously generate an internal reset signal for the entire chip.
When this watchdog function is not needed, the WDT can be used as an interval timer. In the
interval timer operation, an interval timer interrupt is generated at each counter overflow. The
WDT is also used in recovering from standby mode.
12.1.1
WDT features are listed below:
Watchdog timer mode interval timer mode can be selected.
Outputs WDTOVF in or watchdog timer mode. When the counter overflows in watchdog timer
mode, overflow signal WDTOVF is output externally. It is possible to select whether or not to
reset the chip internally when this happens. Either the power-on reset or manual reset signal
can be selected as the internal reset signal.
Generates interrupts in interval timer mode. When the counter overflows, it generates an
interval timer interrupt.
Used to clear standby mode.
Selection of eight counter clock sources
Overview
Features
Section 12 Watchdog Timer (WDT)
Rev. 7.00 Jan 31, 2006 page 339 of 658
Section 12 Watchdog Timer (WDT)
REJ09B0272-0700
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