HD64F2239TF20I Renesas Electronics America, HD64F2239TF20I Datasheet - Page 207
HD64F2239TF20I
Manufacturer Part Number
HD64F2239TF20I
Description
MCU 3V 384K I-TEMP 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2200r
Datasheet
1.DF2238RFA6V.pdf
(1048 pages)
Specifications of HD64F2239TF20I
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
72
Program Memory Size
384KB (384K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD64F2239TF20I
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 207 of 1048
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5.5.2
Enabling and disabling of IRQ interrupts, IRQ interrupts and on-chip peripheral module interrupts
can be set by means of the I bit in the CPU’s CCR. Interrupts are enabled when the I bit is cleared
to 0, and disabled when set to 1.
Figure 5.5 shows a flowchart of the interrupt acceptance operation in this case.
1. If an interrupt source occurs when the corresponding interrupt enable bit is set to 1, an
2. If the I bit is set to 1, only an NMI interrupt is accepted, and other interrupt requests are held
3. Interrupt requests are sent to the interrupt controller, the highest-ranked interrupt according to
4. When the CPU accepts an interrupt request, it starts interrupt exception handling after
5. The PC and CCR are saved to the stack area by interrupt exception handling. The PC saved on
6. Next, the I bit in CCR is set to 1. This masks all interrupts except NMI.
7. The CPU generates a vector address for the accepted interrupt and starts execution of the
interrupt request is sent to the interrupt controller.
pending. If the I bit is cleared, an interrupt request is accepted.
the priority system is accepted, and other interrupt requests are held pending.
execution of the current instruction has been completed.
the stack shows the address of the first instruction to be executed after returning from the
interrupt handling routine.
interrupt handling routine at the address indicated by the contents of the vector address in the
vector table.
Interrupt Control Mode 0
Rev. 6.00 Mar. 18, 2010 Page 145 of 982
Section 5 Interrupt Controller
REJ09B0054-0600
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