HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 214
HD64F38024DV
Manufacturer Part Number
HD64F38024DV
Description
IC H8/SLP MCU FLASH 80QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheets
1.US38024-BAG1.pdf
(684 pages)
2.DF36012GFYV.pdf
(1021 pages)
3.DF38102HV.pdf
(145 pages)
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
-
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(b) Calculation of stack area size
The maximum stack area size used by C/C++ programs and standard libraries can be
calculated by specifying the stack option of the optimizing linkage editor to output a stack
information file, and using the stack usage analysis tool. For details of use of the stack
usage analysis tool, refer to section 6, Operating Stack Analysis Tool.
The stack analysis tool can calculate the stack usage, if label is specified by .STACK
directive. But it cannot calculate the stack area used by an assembly program, which was
assembled by the assembler unable to output to a stack information file. Instead, the stack
usage of an assembly program should be computed by the method outlined below for
calculating the stack usage of a C/C++ program, and the result should be added to the stack
usage calculated by the stack usage analysis tool.
Method for Calculating Stack Usage by C/C++ Program: Stack area is allocated for use
by a C/C++ program each time a function is called, and is released when the function
returns. In order to calculate the size of the stack area used, first the amount of stack space
used by each function is computed, and then the calling relations of functions are used to
calculate the actual stack space use.
The stack area used by each function can be found from the symbol allocation information
(total frame size) of the compile list.
The stack area used by each function can be found from the symbol allocation information
(total frame size) of the compile list.
The stack area used by the function is the total frame size of 0x12, that is, 18 bytes.
An example of function calling relationships and stack use by each function appears in
figure 9.5. Here, the size of the stack used when function g is called via function f is
calculated in table 9.2.
****** STACK FRAME INFORMATION ******
FILE NAME: test.c
Function (File test.c
Paramater Area Size
Linkage Area Size
Local Variable Size
Temporary Size
Register Save Area Size
Total Frame Size
Optimize Option Specified :
, Line
: 0x00000008 Byte(s)
: 0x00000004 Byte(s)
: 0x00000002 Byte(s)
: 0x00000000 Byte(s)
: 0x00000004 Byte(s)
: 0x00000012 Byte(s)
No Allocation Information Available
2):main
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