DF2148ATE20 Renesas Electronics America, DF2148ATE20 Datasheet - Page 166

• 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

Section 5 Interrupt Controller
ISCRH and ISCRL are 8-bit readable/writable registers that select rising edge, falling edge, or
both edge detection, or level sensing, for the input at pins IRQ7 to IRQ0.
Each of the ISCR registers is initialized to H'00 by a reset and in hardware standby mode.
ISCRH Bits 7 to 0, ISCRL Bits 7 to 0: IRQ7 Sense Control A and B (IRQ7SCA, IRQ7SCB) to
IRQ0 Sense Control A and B (IRQ0SCA, IRQ0SCB)
IRQ7SCB to
IRQ0SCB
0
1
5.2.5
ISR is an 8-bit readable/writable register that indicates the status of IRQ7 to IRQ0 interrupt
requests.
ISR is initialized to H'00 by a reset and in hardware standby mode.
Rev. 4.00 Sep 27, 2006 page 120 of 1130
REJ09B0327-0400
Bit
Initial value
Read/Write
Note: * Only 0 can be written, to clear the flag.
ISCRH Bits 7 to 0
ISCRL Bits 7 to 0
IRQ Status Register (ISR)
IRQ7SCA to
IRQ0SCA
0
1
0
1
R/(W) *
IRQ7F
7
0
R/(W) *
IRQ6F
6
0
Description
Interrupt request generated at IRQ7 to IRQ0 input low level
Interrupt request generated at falling edge of IRQ7 to IRQ0 input
Interrupt request generated at rising edge of IRQ7 to IRQ0 input
Interrupt request generated at both falling and rising edges of
IRQ7 to IRQ0 input
R/(W) *
IRQ5F
5
0
R/(W) *
IRQ4F
4
0
R/(W) *
IRQ3F
3
0
R/(W) *
IRQ2F
2
0
R/(W) *
IRQ1F
1
0
(Initial value)
R/(W) *
IRQ0F
0
0