HD64F3642AH Renesas Electronics America, HD64F3642AH Datasheet - Page 82

• Manufacturer Part Number: HD64F3642AH
• Description: IC H8 MCU FLASH 16K 64QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3642AH

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 3 Exception Handling
Reset exception handling takes place as follows.
When system power is turned on or off, the RES pin should be held low.
Figure 3.1 shows the reset sequence starting from RES input.
Rev. 6.00 Sep 12, 2006 page 60 of 526
REJ09B0326-0600
RES
Internal
address bus
Internal read
signal
Internal write
signal
Internal data
bus (16-bit)
(1) Reset exception handling vector address (H'0000)
(2) Program start address
(3) First instruction of program
The CPU internal state and the registers of on-chip peripheral modules are initialized, with the
I bit of the condition code register (CCR) set to 1.
The PC is loaded from the reset exception handling vector address (H'0000 to H'0001), after
which the program starts executing from the address indicated in PC.
Figure 3.1 Reset Sequence
Vector fetch
Reset cleared
(2)
(1)
Internal
processing
Program initial
instruction prefetch
(2)
(3)