DF3052BX25V Renesas Electronics America, DF3052BX25V Datasheet - Page 122

• Manufacturer Part Number: DF3052BX25V
• Description: MCU 5V 512K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of DF3052BX25V

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: -

Section 5 Interrupt Controller
5.3
The interrupt sources include external interrupts (NMI, IRQ
5.3.1
There are seven external interrupts: NMI, and IRQ
can be used to exit software standby mode.
NMI: NMI is the highest-priority interrupt and is always accepted, regardless of the states of the
I and UI bits in CCR. The NMIEG bit in SYSCR selects whether an interrupt is requested by the
rising or falling edge of the input at the NMI pin. NMI interrupt exception handling has vector
number 7.
IRQ
The IRQ
Figure 5.2 shows a block diagram of interrupts IRQ
Rev. 3.00 Mar 21, 2006 page 92 of 814
REJ09B0302-0300
IRQn
Note: n = 5 to 0
ISCR settings can select whether an interrupt is requested by the low level of the input at pins
IRQ
IER settings can enable or disable the IRQ
assigned by four bits in IPRA (IPRA7 to IPRA4).
The status of IRQ
to 0 by software.
0
to IRQ
0
input
0
to IRQ
Interrupt Sources
External Interrupts
to IRQ
5
Interrupts: These interrupts are requested by input signals at pins IRQ
5
, or by the falling edge.
5
interrupts have the following features.
Figure 5.2 Block Diagram of Interrupts IRQ
0
to IRQ
5
sense circuit
Edge/level
interrupt requests is indicated in ISR. The ISR flags can be cleared
IRQnSC
Clear signal
0
to IRQ
0
0
to IRQ
to IRQ
5
S
R
interrupts. Interrupt priority levels can be
IRQnF
5
. Of these, NMI, IRQ
0
5
.
to IRQ
Q
IRQnE
5
0
) and 30 internal interrupts.
to IRQ
5
0
IRQn interrupt
request
, IRQ
0
1
to IRQ
, and IRQ
5
.
2