HD64F7047F50V Renesas Electronics America, HD64F7047F50V Datasheet - Page 364

IC H8 MCU FLASH 256K 100TQFP

HD64F7047F50V

Manufacturer Part Number
HD64F7047F50V
Description
IC H8 MCU FLASH 256K 100TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7047r
Datasheets

Specifications of HD64F7047F50V

Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
CAN, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
53
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
12K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Package
100PQFP
Family Name
SuperH
Maximum Speed
50 MHz
Operating Supply Voltage
5 V
Data Bus Width
32 Bit
Number Of Programmable I/os
53
Interface Type
CAN/SCI
On-chip Adc
16-chx10-bit
Number Of Timers
7
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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11.4
11.4.1
To use the WDT as a watchdog timer, set the WT/IT and TME bits of TCSR to 1. Software must
prevent TCNT overflow by rewriting the TCNT value (normally by writing H'00) before overflow
occurs. No TCNT overflows will occur while the system is operating normally, but if TCNT fails
to be rewritten and overflows occur due to a system crash or the like, a WDTOVF signal is output
externally. The WDTOVF signal can be used to reset the system. The WDTOVF signal is output
for 128 φ clock cycles.
If the RSTE bit in RSTCSR is set to 1, a signal to reset the chip will be generated internally
simultaneous to the WDTOVF signal when TCNT overflows. Either a power-on reset or a manual
reset can be selected by the RSTS bit in RSTCSR. The internal reset signal is output for 512 φ
clock cycles.
When a WDT overflow reset is generated simultaneously with a reset input at the RES pin, the
RES reset takes priority, and the WOVF bit in RSTCSR is cleared to 0.
The following are not initialized by a WDT reset signal:
• POE (port output enable) of MTU and MMT registers
• PFC (pin function controller) registers
• I/O port registers
These registers are initialized only by an external power-on reset.
Rev. 2.00, 09/04, page 322 of 720
Operation
Watchdog Timer Mode

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