DF2552BR26DV Renesas Electronics America, DF2552BR26DV Datasheet - Page 142
DF2552BR26DV
Manufacturer Part Number
DF2552BR26DV
Description
IC H8S/2552 MCU FLASH 176-LFBGA
Manufacturer
Renesas Electronics America
Series
H8® H8S/2500r
Specifications of DF2552BR26DV
Core Processor
H8S/2000
Core Size
16-Bit
Speed
26MHz
Connectivity
I²C, SCI
Peripherals
POR, PWM, WDT
Number Of I /o
104
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 16x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
176-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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Part Number:
DF2552BR26DV
Manufacturer:
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Section 5 Interrupt Controller
5.4
5.4.1
There are 9 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.
IRQ7 to IRQ0 Interrupts: IRQ7 to IRQ0 interrupts are requested by an input signal at the IRQ7
to IRQ0 pins. IRQ7 to IRQ0 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 IRQ7 to IRQ0 interrupt requests can be selected with IER.
• The interrupt priority level can be set with IPR.
• The status of IRQ7 to IRQ0 interrupt requests is indicated in ISR. ISR flags can be cleared to 0
A block diagram of IRQ7 to IRQ0 interrupts is shown in figure 5.2.
The set timing for IRQ7F to IRQ0F is shown in figure 5.3.
Rev. 6.00 Sep. 24, 2009 Page 94 of 928
REJ09B0099-0600
edge, rising edge, or both edges, at the IRQ7 to IRQ0 pins.
by software.
IRQn input
Interrupt Sources
External Interrupts
Note: n = 7 to 0
Figure 5.2 Block Diagram of IRQ7 to IRQ0 Interrupts
IRQnSCA, IRQnSCB
detection circuit
Edge/level
Clear signal
S
R
IRQnF
Q
IRQnE
IRQn interrupt
request
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