HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 265

• 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: -

When parameter types are not declared using a prototype declaration, if the same type is not
specified by both the calling and the called function so as to ensure that the correct parameters are
passed, correct operation is not guaranteed.
(b) Area for allocation of parameters
In the example of a case in which correct operation is not guaranteed, the parameter x is
converted to the double type by the function main because function f has no parameter
prototype declaration. On the other hand, the parameter is declared as the float type by the
function f. Hence the parameter cannot be passed correctly. Either the parameter type
should be declared using a prototype declaration, or else the parameter declaration for
function f should be changed to the double type.
In the example of correct type specification, the parameter type is declared using a
prototype declaration.
Parameters are allocated to an area on the stack in some cases, and to registers in others.
Areas for allocation of parameters by object type are shown in table 9.6, and general rules
for areas for allocation of parameters are indicated in figure 9.9.
The “this” pointer of nonstatic function members in C++ programs is allocated to R0 or
ER0.
Caution
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