H8/38799

Features:

This LSI includes an interrupt controller, which has the following features.
• Priorities settable with IPR
An interrupt priority register (IPR) is provided for setting mask levels for interrupts. Three mask levels can be set for each module for all interrupts except an NMI and address break.
• Interrupts can be enabled or disabled in three levels by the INTM1 and INTM0 bits in the interrupt mask register (INTM).
• Fourteen external interrupts
NMI is the highest-priority interrupt, and is accepted at all times. Rising or falling edge sensing can be selected for NMI. Rising or falling edge sensing can be selected for IRQ0,IRQ1, IRQ3, IRQ4, and WKP0 to WKP7. Rising, falling, or both edge sensing can be selected for IRQAEC.

Specifications

Item		Symbol	Value	Unit	Note
Power supply voltage		VCC	0.3 to +4.3	V	*1
Analog power supply voltage		AVCC	0.3 to +4.3	V
Input voltage	Other than port B	Vin	0.3 to VCC +0.3	V
	Port B		0.3 to AVCC +0.3	V
Operating temperature		Topr	20 to +75 (general specifications)*2
			40 to +85 (wide temperature range specifications)*2
Storage temperature		Tstg	55 to +125

Notes: 1. Permanent damage may occur to the chip if absolute maximum ratings are exceeded. Normal operation should be under the conditions specified in Electrical Characteristics. Exceeding these values can result in incorrect operation and reduced reliability.
2. When the operating voltage (Vcc) for reading the flash memory is from 2.7 V to 3.6 V, the operating temperature (Ta) for programming/erasing ranges from 20 to +75°C.When the operating voltage (Vcc) for reading the flash memory is from 1.8 V to 3.6 V, the operating temperature (Ta) for programming/erasing ranges from 20 to +50°C.

Description

The H8/38799 interrupt controller has the following registers.
• Interrupt edge select register (IEGR)
• Wakeup edge select register (WEGR)
• Interrupt enable register 1 (IENR1)
• Interrupt enable register 2 (IENR2)
• Interrupt request register 1 (IRR1)
• Interrupt request register 2 (IRR2)
• Wakeup interrupt request register (IWPR)
• Interrupt priority register A (IPRA)
• Interrupt priority register B (IPRB)
• Interrupt priority register C (IPRC)
• Interrupt priority register D (IPRD)
• Interrupt priority register E (IPRE)
• Interrupt priority register F (IPRF)
• Interrupt mask register (INTM)