HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 135

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

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: -

5.3
The interrupt sources include external interrupts (NMI, IRQ
5.3.1
There are seven external interrupts: NMI, and IRQ
IRQ
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.
Note: * In the versions with on-chip flash memory, NMI input is sometimes disabled. For details
IRQ
The IRQ
Figure 5.2 shows a block diagram of interrupts IRQ
IRQn
Note: n = 5 to 0
ISCR settings can select whether an interrupt is requested by the low level of the input at pins
I R Q
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.
2
0
can be used to exit software standby mode.
to IRQ
0
see 17.9, NMI Input Disabling Conditions.
input
0
to
Interrupt Sources
External Interrupts
to IRQ
I R Q
5
Interrupts: These interrupts are requested by input signals at pins
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
Rev. 2.00 Sep 20, 2005 page 95 of 800
5
. Of these, NMI, IRQ
0
5
.
to IRQ
Q
IRQnE
5
Section 5 Interrupt Controller
0
) and 27 internal interrupts.
to IRQ
5
REJ09B0260-0200
0
IRQn interrupt
request
, IRQ
I R Q
0
1
to
, and
I R Q
5
.