HD6473837HV Renesas Electronics America, HD6473837HV Datasheet - Page 82

MCU 3/5V 60K PB-FREE 100-QFP

HD6473837HV

Manufacturer Part Number
HD6473837HV
Description
MCU 3/5V 60K PB-FREE 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Lr
Datasheet

Specifications of HD6473837HV

Core Processor
H8/300L
Core Size
8-Bit
Speed
5MHz
Connectivity
SCI
Peripherals
LCD, PWM
Number Of I /o
84
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 12x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-

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3.2.3
After a reset, if an interrupt were to be accepted before the stack pointer (SP: R7) was initialized,
PC and CCR would not be pushed onto the stack correctly, resulting in program runaway. To
prevent this, immediately after reset exception handling all interrupts are masked. For this reason,
the initial program instruction is always executed immediately after a reset. This instruction should
initialize the stack pointer (e.g. MOV.W #xx: 16, SP).
RES
MD0
Internal
address bus
Internal read
signal
Internal write
signal
Internal data
bus (16-bit)
Interrupt Immediately after Reset
(1) Reset exception handling vector address (H'0000)
(2) Program start address
(3) First instruction of program
Figure 3.2 Reset Sequence (when MD0 Pin is Low)
8,192 clock
cycles
Vector fetch
(1)
(2)
Reset cleared
Internal
processing
Program initial
instruction prefetch
(2)
(3)
65

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