DF3026X25V Renesas Electronics America, DF3026X25V Datasheet - Page 140
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DF3026X25V
Manufacturer Part Number
DF3026X25V
Description
MCU 3V 256K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Specifications of DF3026X25V
Core Processor
H8/300H
Core Size
16-Bit
Speed
25MHz
Connectivity
SCI, SmartCard
Peripherals
PWM, WDT
Number Of I /o
70
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 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
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF3026X25V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 5 Interrupt Controller
5.4
5.4.1
The H8/3024 Group handles interrupts differently depending on the setting of the UE bit. When
UE = 1, interrupts are controlled by the I bit. When UE = 0, interrupts are controlled by the I and
UI bits. Table 5.4 indicates how interrupts are handled for all setting combinations of the UE, I,
and UI bits.
NMI interrupts are always accepted except in the reset and hardware standby states * . IRQ
interrupts and interrupts from the on-chip supporting modules have their own enable bits. Interrupt
requests are ignored when the enable bits are cleared to 0.
Note: * In the versions with on-chip flash memory, NMI input is sometimes disabled. For details
Table 5.4
SYSCR
UE
1
0
UE = 1: Interrupts IRQ
masked by the I bit in the CPU’s CCR. Interrupts are masked when the I bit is set to 1, and
unmasked when the I bit is cleared to 0. Interrupts with priority level 1 have higher priority. Figure
5.4 is a flowchart showing how interrupts are accepted when UE = 1.
Rev. 2.00 Sep 20, 2005 page 100 of 800
REJ09B0260-0200
see 17.9, NMI Input Disabling Conditions.
Interrupt Operation
Interrupt Handling Process
I
0
1
0
1
UE, I, and UI Bit Settings and Interrupt Handling
CCR
UI
—
—
—
0
1
0
to IRQ
Description
All interrupts are accepted. Interrupts with priority level 1 have higher
priority.
No interrupts are accepted except NMI.
All interrupts are accepted. Interrupts with priority level 1 have higher
priority.
NMI and interrupts with priority level 1 are accepted.
No interrupts are accepted except NMI.
5
and interrupts from the on-chip supporting modules can all be
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