DS72030W200FPV Renesas Electronics America, DS72030W200FPV Datasheet - Page 227
DS72030W200FPV
Manufacturer Part Number
DS72030W200FPV
Description
MPU, 32BIT, SH7203, ROMLESS, 240QFP
Manufacturer
Renesas Electronics America
Series
SH7200r
Datasheet
1.R5S72030W200FP.pdf
(1686 pages)
Specifications of DS72030W200FPV
Core Size
32bit
Program Memory Size
32KB
Cpu Speed
200MHz
Digital Ic Case Style
QFP
No. Of Pins
240
Supply Voltage Range
1.1V To 1.3V
Operating Temperature Range
-20°C To +85°C
Svhc
No SVHC
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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6.10
6.10.1
The interrupt source flags should be cleared in the interrupt exception service routine. After
clearing the interrupt source flag, "time from occurrence of interrupt request until interrupt
controller identifies priority, compares it with mask bits in SR, and sends interrupt request signal
to CPU" shown in table 6.5 is required before the interrupt source sent to the CPU is actually
cancelled. To ensure that an interrupt request that should have been cleared is not inadvertently
accepted again, read* the interrupt source flag after it has been cleared, and then execute an RTE
instruction.
Note: * When clearing the USB interrupt source flag, read the flag three times after clearing it.
6.10.2
Once the interrupt controller has accepted an interrupt request, the low level is output from the
IRQOUT pin until the CPU jumps to the first address of the interrupt exception service routine,
after which the high level is output from the IRQOUT pin.
If, however, the interrupt controller has accepted an interrupt request and the low level is being
output from the IRQOUT pin, but the interrupt request is canceled before the CPU has jumped to
the first address of the interrupt exception service routine, the low level continues to be output
from the IRQOUT pin until the CPU has jumped to the first address of the interrupt exception
service routine for the next interrupt request.
Usage Note
Timing to Clear an Interrupt Source
Timing of IRQOUT Negation
Rev. 3.00 Sep. 28, 2009 Page 195 of 1650
Section 6 Interrupt Controller (INTC)
REJ09B0313-0300
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