DF2505BR26DV Renesas Electronics America, DF2505BR26DV Datasheet - Page 142

• Manufacturer Part Number: DF2505BR26DV
• Description: IC H8S/2505 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2505BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 384KB (384K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 5 Interrupt Controller
5.4
5.4.1
There are 9 external interrupts: NMI and IRQ7 to IRQ0. These interrupts can be used to restore
this LSI from software standby mode.
NMI Interrupt: NMI is the highest-priority interrupt, and is always accepted by the CPU
regardless of the interrupt control mode or the status of the CPU interrupt mask bits. The NMIEG
bit in SYSCR can be used to select whether an interrupt is requested at a rising edge or a falling
edge on the NMI pin.
IRQ7 to IRQ0 Interrupts: IRQ7 to IRQ0 interrupts are requested by an input signal at the IRQ7
to IRQ0 pins. IRQ7 to IRQ0 interrupts have the following features:
• Using ISCR, it is possible to select whether an interrupt is generated by a low level, falling
• Enabling or disabling of IRQ7 to IRQ0 interrupt requests can be selected with IER.
• The interrupt priority level can be set with IPR.
• The status of IRQ7 to IRQ0 interrupt requests is indicated in ISR. ISR flags can be cleared to 0
A block diagram of IRQ7 to IRQ0 interrupts is shown in figure 5.2.
The set timing for IRQ7F to IRQ0F is shown in figure 5.3.
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REJ09B0099-0600
edge, rising edge, or both edges, at the IRQ7 to IRQ0 pins.
by software.
IRQn input
Interrupt Sources
External Interrupts
Note: n = 7 to 0
Figure 5.2 Block Diagram of IRQ7 to IRQ0 Interrupts
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Clear signal
S
R
IRQnF
Q
IRQnE
IRQn interrupt
request