HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 964
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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Part Number:
HD64F38024DV
Manufacturer:
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Example 2:
int a,b;
f() {
}
In this example, if statement (2) has been eliminated and (3) is always executed at all times as
a result of optimization.
Example 3:
int a,b,c;
f() {
}
In this example, expression (1) has been eliminated as a result of optimization.
Due to alias analysis of external variables, a in (1) and a in (2) are handled as the same
value.
Constant value (1) is propagated to expression (2). Accordingly, expression (2) is
converted as follows:
-> if(1)
Therefore, the expression in question is judged as true, the conditional statement is
eliminated, and the above expression (3) is always executed at all times.
Obtains the control flow including the conditional of the if statement expression.
Due to analyzing the control flow analysis and alias analysis of external variables, it is
proved that the value set in a in (1) is not used. Therefore, the above expression (1) is a
redundant expression that is not referenced, and thus it is eliminated.
a=1;
if(a);
{
}
a=1;
if(c);
{
}
a=2;
b=1;
b=1;
//
//
//
//
//
//
//
<- (1)
<- (2)
<- (3)
<- (1)
<- (2)
<- (3)
<- (4)
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