HD6417750SF200V Renesas Electronics America, HD6417750SF200V Datasheet - Page 31

• Manufacturer Part Number: HD6417750SF200V
• Description: MPU 3V 16K PB-FREE 208-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750SF200V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 200MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 2.07 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Item
19.4.1 Interrupt
Operation Sequence
Figure 19.3 Interrupt
Operation Flowchart
19.6 Usage Notes
Page
843
844
847 to
849
Revision (See Manual for Details)
Description and notes amended
3. The priority level of the interrupt selected by the interrupt
...
Notes: 1. The interrupt mask bits (IMASK) in the status register
Figure amended
Newly added
Note: * IMASK: Interrupt mask bits in status register (SR)
controller is compared with the interrupt mask bits (IMASK) in
the status register (SR) of the CPU. If the request priority
level is higher that the level in bits IMASK, the interrupt
controller accepts the interrupt and sends an interrupt
request signal to the CPU.
Set BL, MD, RB bits
Branch to exception
Set interrupt source
Save SR to SSR;
save PC to SPC
2. The interrupt source flag should be cleared in the
in INTEVT
in SR to 1
handler
(SR) are not changed by acceptance of an interrupt in
this LSI.
interrupt handler. 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, then wait for the interval shown in
table 19.9 (Time for priority decision and SR mask bit
comparison) before clearing the BL bit or executing
an RTE instruction.
Yes
interrupt?
IMASK * =
level 14 or
Rev.7.00 Oct. 10, 2008 Page xxix of lxxxiv
Level 15
lower?
Yes
No
Yes
No
interrupt?
level 13 or
Level 14
IMASK =
lower?
Yes
No
Yes
No
interrupt?
IMASK =
level 0?
REJ09B0366-0700
Level 1
Yes
No
No