R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 377
R5S77631Y266BGV
Manufacturer Part Number
R5S77631Y266BGV
Description
IC SUPERH MPU ROMLESS 499BGA
Manufacturer
Renesas Electronics America
Series
SuperH® SH7780r
Datasheet
1.R5S77631Y266BGV.pdf
(2056 pages)
Specifications of R5S77631Y266BGV
Core Processor
SH-4A
Core Size
32-Bit
Speed
266MHz
Connectivity
Audio Codec, I²C, MMC, SCI, SIM, SIO, SSI, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
107
Program Memory Type
ROMless
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
1.15 V ~ 1.35 V
Data Converters
A/D 4x10b; D/A 2x8b
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
499-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
R5S77631Y266BGV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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9.5.2
When handling multiple interrupts, an interrupt handling routine should include the following
procedures:
1. To identify the interrupt source, branch to a specific interrupt handling routine for the interrupt
2. Clear the interrupt source in each specific interrupt handling routine.
3. Save SSR and SPC to the stack.
4. Clear the BL bit in SR. When the INTMU bit in CPUOPM is set to 1, the interrupt mask level
5. Handle the interrupt as required.
6. Set the BL bit in SR to 1.
7. Restore SSR and SPC from memory.
8. Execute the RTE instruction.
When these procedures are followed in order, an interrupt of higher priority than the one being
handled can be accepted if multiple interrupts occur after step 4. This reduces the interrupt
response time for urgent processing.
9.5.3
Setting the MAI bit in ICR0 to 1 masks interrupts while the NMI signal is low regardless of the
BL and IMASK bit settings in SR.
• Normal operation or sleep mode
All interrupts are masked while the NMI signal is low. Note that only NMI interrupts due to NMI
signal input occur.
source by using the INTEVT code as an offset.
(IMASK) in SR is automatically modified to the level of the accepted interrupt. When the
INTMU bit in CPUOPM is cleared to 0, set the IMASK bit in SR by software to the accepted
interrupt level.
Multiple Interrupts
Interrupt Masking by MAI Bit
Rev. 2.00 May 22, 2009 Page 307 of 1982
Section 9 Interrupt Controller (INTC)
REJ09B0256-0200
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