DF3048X16V Renesas Electronics America, DF3048X16V Datasheet - Page 145

• Manufacturer Part Number: DF3048X16V
• Description: MCU 5V 128K,PB-FREE 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3048X16V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 16MHz
• 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-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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).
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.
IRQaF
IRQbF
Occurrence conditions
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
Rev. 7.00 Sep 21, 2005 page 119 of 878
Section 5 Interrupt Controller
Occurrence condition 2
Clear in error
Read
Read
1
0
REJ09B0259-0700
Write
Write
0
0