HD64F3048BF25 Renesas Electronics America, HD64F3048BF25 Datasheet - Page 148

• Manufacturer Part Number: HD64F3048BF25
• Description: IC H8 MCU FLASH 128K 100QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3048BF25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 8MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 5 Interrupt Controller
In all of the setting conditions 1 to 3 and occurrence conditions 1 and 2 are generated, IRQbF
clears in error during ISR write for occurrence condition 2 and interrupt processing is not carried
out. However, if IRQbF flag reaches 0 between occurrence conditions 1 and 2, IRQbF flag does
not clear in error.
Rev. 3.00 Sep 27, 2006 page 120 of 872
REJ09B0325-0300
IRQaF
IRQbF
Occurrence conditions
1. When IRQaF = 1, for the IRQaF flag to clear, ISR register read is executed. Thereafter
2. IRQaF flag clear and IRQbF flag generation compete (IRQaF flag setting).
interrupt processing is carried out and IRQbF flag clears.
(The ISR read needed for IRQaF flag clear was at IRQbF = 0 but in the time taken for ISR
write, IRQbF = 1 was reached.)
Figure 5.9 IRQnF Flag When Interrupt Processing Is Not Conducted
Occurrence condition 1
Read
Read
1
1
Write
Write
0
1
Execution
IRQb
Occurrence condition 2
Clear in error
Read
Read
0
1
Write
Write
0
0