DF2238RTF6 Renesas Electronics America, DF2238RTF6 Datasheet - Page 197

• Manufacturer Part Number: DF2238RTF6
• Description: MCU 2.2/3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2238RTF6

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 6MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 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: -
• Other names: HD64F2238RTF6; HD64F2238RTF6

5.4
5.4.1
There are nine 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.
IRQn Interrupts (n = 7 to 0): IRQn interrupts are requested by an input signal at IRQn pins.
IRQn 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 IRQn interrupt requests can be selected with IER.
• The interrupt priority level can be set with IPR.
• The status of IRQn interrupt requests is indicated in ISR. ISR flags can be cleared to 0 by
A block diagram of IRQn interrupts is shown in figure 5.2.
The set timing for IRQnF is shown in figure 5.3.
edge, rising edge, or both edges, at IRQn pins.
software.
IRQn input
Note: n = 7 to 0
External Interrupts
Interrupt Sources
IRQnSCA, IRQnSCB
Figure 5.2 Block Diagram of IRQn Interrupts
detection circuit
Edge/level
Clear signal
S
R
IRQnF
Rev. 6.00 Mar. 18, 2010 Page 135 of 982
Q
IRQnE
Section 5 Interrupt Controller
IRQn interrupt
request
REJ09B0054-0600