HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 48

• 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: -

OPT_Range: External Variable Optimization Range Specification
C/C++ <Optimize> [Details...][Global variables][Specify optimizing range :]
34
When volatile is specified
When novolatile is specified
Command Line Format
OPT_Range = { All | NOLoop | NOBlock }
Description
When opt_range=all is specified, the compiler optimizes external variables within the entire
function.
When opt_range=noloop is specified, external variables in a loop and external variables used
in a loop iteration condition are not to be optimized.
When opt_range=noblock is specified, external variables extending across branches
(including loops) are not to be optimized.
When this option is omitted, opt_range=all is assumed.
Examples
(1) Optimization extending across a branch (done when opt_range=all or opt_range=noloop
mov.w @_a,R0
mov.w @_b,R0
rts
mov.w @_a,R0
rts
is specified)
int A,B,C;
void f(int a) {
}
A = 1;
if (a) {
}
C = A;
B = 1;
; b is accessed as a volatile variable
; As a result of optimization, the access to b may be deleted