HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 102
HD6413007F20
Manufacturer Part Number
HD6413007F20
Description
IC H8 MCU ROMLESS 5V 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13007F20V.pdf
(798 pages)
Specifications of HD6413007F20
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
35
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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4. Exception Handling
4.2
4.2.1
A reset is the highest-priority exception. When the RES pin goes low, all processing halts and the
chip enters the reset state. A reset initializes the internal state of the CPU and the registers of the
on-chip supporting modules. Reset exception handling begins when the RES pin changes from
low to high.
The chip can also be reset by overflow of the watchdog timer. For details see section 12,
Watchdog Timer.
4.2.2
The chip enters the reset state when the RES pin goes low.
To ensure that the chip is properly reset, hold the RES pin low for at last 20 ms at power-up. To
reset the chip during operation, hold the RES pin low for at least 10 system clock (φ) cycles. See
appendix D.2, Pin States at Reset, for the states of the pins in the reset state.
When the RES pin goes high after being held low for the necessary time, the chip starts reset
exception handling as follows.
• The internal state of the CPU and the registers of the on-chip supporting modules are
• The contents of the reset vector address (H'0000 to H'0003) are read, and program execution
Figure 4.2 shows the reset sequence in modes 1 and 3. Figure 4.3 shows the reset sequence in
modes 2 and 4.
Rev.5.00 Sep. 12, 2007 Page 72 of 764
REJ09B0396-0500
initialized, and the I bit is set to 1 in CCR.
starts from the address indicated in the vector address.
Reset
Overview
Reset Sequence
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