HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 268

• 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 specifying parameters that are structures, unions or classes, 2-byte boundary alignment is
used regardless of the normal byte alignment for that type, and an area with an even number of
bytes is used. This is because in the H8SX, AE5, H8S, H8/300H and H8/300 series, the stack
pointer changes in 2-byte units.
254
(d) Location for setting return values
Figure 9.10 Example of Allocation of Registers for Parameter Storage (H8S/2600)
Depending on the type of the value returned by a function, the return value may be set in
either a register or in memory. The relation between the return value type and the location
for storage is described in table 9.7. When setting a function return value in memory, the
return value is set in the area indicated by the return value address. The caller function
secures an area for the return value, the area for parameters, and the area to set the address
of the return value, calls the function (cf. figure 9.11).
If the return value of a function is of type void, no return value is set.
Allocation to parameter area on the stack
Parameters are allocated to areas on the stack for parameters in the order specified in
the source program, starting from lowest addresses.
In section 9.3.3, Examples of Parameter Assignment, specific examples of parameter
allocation for different CPU/operating modes are described.
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