DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 173

• 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

Figure 5.4 shows the timing of IRQnF setting.
The vector numbers for IRQ7 to IRQ0 interrupt exception handling are 23 to 16.
Detection of IRQ7 to IRQ0 interrupts does not depend on whether the relevant pin has been set for
input or output. Therefore, when a pin is used as an external interrupt input pin, clear the
corresponding DDR bit to 0 and do not use the pin as an I/O pin for another function. When the
IRQ6 pin is assigned as the IRQ6 interrupt input pin, then set the KMIMR6 bit to 0.
When the IRQ7 pin is used as the IRQ7 interrupt input pin, bits KMIMR15 to KMIMR8 must all
be set to 1. If any of these bits is cleared to 0, interrupt input from the IRQ7 pin will be ignored.
As interrupt request flags IRQ7F to IRQ0F are set when the setting condition is met, regardless of
the IER setting, only the necessary flags should be referenced.
IRQn
input pin
IRQnF
IRQn input
Note: n: 7 to 0
Figure 5.3 Block Diagram of Interrupts IRQ7 to IRQ0
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Figure 5.4 Timing of IRQnF Setting
Clear signal
S
R
IRQnF
Rev. 4.00 Sep 27, 2006 page 127 of 1130
Q
IRQnE
Section 5 Interrupt Controller
REJ09B0327-0400
IRQn interrupt
request