DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 155

• Manufacturer Part Number: DF2148ATE20
• Description: IC H8S MCU FLASH 128K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2148ATE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: Host Interface, I²C, IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 74
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 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: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2148ATE20; HD64F2148ATE20

4.3
Interrupt exception handling can be requested by nine external sources (NMI and IRQ7 to IRQ0)
from 23 input pins (NMI, IRQ7 to IRQ0, and KIN15 to KIN0), and internal sources in the on-chip
supporting modules. Figure 4.4 shows the interrupt sources and the number of interrupts of each
type.
The on-chip supporting modules that can request interrupts include the watchdog timer (WDT),
16-bit free-running timer (FRT), 8-bit timer (TMR), serial communication interface (SCI), data
transfer controller (DTC), A/D converter (ADC), host interface (HIF), keyboard buffer controller
(PS2), and I
NMI is the highest-priority interrupt. Interrupts are controlled by the interrupt controller. The
interrupt controller has two interrupt control modes and can assign interrupts other than NMI and
address break to either three priority/mask levels to enable multiplexed interrupt control.
For details on interrupts, see section 5, Interrupt Controller.
Notes:
Interrupts
2
C bus interface (option). Each interrupt source has a separate vector address.
Numbers in parentheses are the numbers of interrupt sources.
* When the watchdog timer is used as an interval timer, it generates an interrupt
request at each counter overflow.
Figure 4.4 Interrupt Sources and Number of Interrupts
Interrupts
External
interrupts
Internal
interrupts
NMI (1)
IRQ7 to IRQ0 (8)
WDT * (2)
FRT (7)
TMR (10)
SCI (12)
DTC (1)
ADC (1)
HIF (4)
PS2 (3)
IIC (3) (option)
Other (1)
Rev. 4.00 Sep 27, 2006 page 109 of 1130
Section 4 Exception Handling
REJ09B0327-0400