HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 147
![MCU 3V 256K 100-TQFP](/photos/28/61/286123/100-tqfp__100-vqfp_sml.jpg)
HD64F3026X25
Manufacturer Part Number
HD64F3026X25
Description
MCU 3V 256K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.DF3026XBL25V.pdf
(843 pages)
Specifications of HD64F3026X25
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
PWM, WDT
Number Of I /o
70
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F3026X25
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 147 of 843
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5.5
5.5.1
When an instruction clears an interrupt enable bit to 0 to disable the interrupt, the interrupt is not
disabled until after execution of the instruction is completed. If an interrupt occurs while a BCLR,
MOV, or other instruction is being executed to clear its interrupt enable bit to 0, at the instant
when execution of the instruction ends the interrupt is still enabled, so its interrupt exception
handling is carried out. If a higher-priority interrupt is also requested, however, interrupt exception
handling for the higher-priority interrupt is carried out, and the lower-priority interrupt is ignored.
This also applies to the clearing of an interrupt flag to 0.
Figure 5.8 shows an example in which an IMIEA bit is cleared to 0 in the 16-bit timer’s TISRA
register.
This type of contention will not occur if the interrupt is masked when the interrupt enable bit or
flag is cleared to 0.
Internal
address bus
Internal
write signal
IMIEA
IMIA
IMFA interrupt
signal
Figure 5.8 Contention between Interrupt and Interrupt-Disabling Instruction
Usage Notes
Contention between Interrupt and Interrupt-Disabling Instruction
TISRA write cycle by CPU
TISRA address
Rev. 2.00 Sep 20, 2005 page 107 of 800
IMIA exception handling
Section 5 Interrupt Controller
REJ09B0260-0200
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