HD64F38024DV Renesas Electronics America, HD64F38024DV Datasheet - Page 123
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:
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executed immediately after the port mode register (or AEGSR) access without executing an
intervening instruction, the flag will not be cleared.
An alternative method is to avoid the setting of interrupt request flags when pin functions are
switched by keeping the pins at the high level so that the conditions in table 3.5 do not occur.
However, the procedure in Figure 3.7 is recommended because IECPWM is an internal signal and
determining its value is complicated.
3.4.3
Use the recommended method, given below when clearing the flags of interrupt request registers
(IRR1, IRR2, IWPR).
• Recommended method
Use a single instruction to clear flags. The bit control instruction and byte-size data transfer
instruction can be used. Two examples of program code for clearing IRRI1 (bit 1 of IRR1) are
given below.
BCLR
MOV.B R1L, @IRR1:8 (set the value of R1L to B'11111101)
Set port mode register (or AEGSR) bit
Figure 3.7 Port Mode Register (or AEGSR) Setting and Interrupt Request Flag
Clear interrupt request flag to 0
Method for Clearing Interrupt Request Flags
Execute NOP instruction
#1,
CCR I bit
CCR I bit
@IRR1:8
←
←
1
0
Clearing Procedure
Interrupts masked. (Another possibility
is to disable the relevant interrupt in
interrupt enable register 1.)
After setting the port mode register
(or AEGSR) bit, first execute at least
one instruction (e.g., NOP), then clear
the interrupt request flag to 0
Interrupt mask cleared
Rev. 8.00 Mar. 09, 2010 Page 101 of 658
Section 3 Exception Handling
REJ09B0042-0800
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