HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 289

• Manufacturer Part Number: HD64F38024DV
• Description: IC H8/SLP MCU FLASH 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300L SLPr

Specifications of HD64F38024DV

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: SCI
• Peripherals: LCD, PWM, WDT
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

9.4.2
(1) Function prototype declarations
(2) Linkage of const objects
(3) Substitution from void*
Contents of the include file (300x.h)
Example:
Before using a function, a prototype declaration is necessary. At this time the types of
parameters should also be declared.
Whereas in C programs const objects are linked externally, in C++ programs they are linked
internally. In addition, const objects require initial values.
In C++ programs, if explicit casting is not used, substitution into pointers to other objects
(excluding pointers to functions and to members) is not possible.
const int cvaluel;
// error in C++
const int cvalue2=1;
// local in C++
void func(void *ptrv,int *ptri)
{
}
ptri = ptrv; // error in C++
struct S_p4ddr{
union SS{
};
#define P4DDR (*(union SS *)0xffffc5)
#define P0 0x1
extern void func1();
void g()
{
}
};
Important Information on Compiling a C Program with the C++ Compiler
func1(1); // error in C++
unsigned char p7:1;
unsigned char p0:1;
unsigned char Schar;
struct S_p4ddr Sstr;
:
const int cvaluel=0;
// initial value required
extern int const cvslue2=1;
// has external linkage like C
void func(void *ptrv,int *ptri)
{
}
Contents of the C source program
extern void func1(int);
void g()
{
}
ptri = (int *)ptrv; // OK
func1(1); // OK
#include "300x.h"
unsigned char DDR;
// Prepare backup data for write-only
// register
void sub(void)
{
}
DDR &=~P0;
P4DDR.Schar=DDR;
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