R5S77631Y266BGV Renesas Electronics America, R5S77631Y266BGV Datasheet - Page 303
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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The interrupt controller (INTC) determines the priority of interrupt sources and controls interrupt
requests to the CPU (SH-4A). The INTC has a register that sets the priority of each interrupt and
interrupt requests are processed according to the priority set in this register by the user.
9.1
SH-4 compatible specifications
• Fifteen levels of external interrupt priority can be set
• NMI noise canceller function
• NMI request masking when the block bit (BL) in the status register (SR) is set to 1
Extended function for SH-4A
• Automatically updates the IMASK bit in SR according to the accepted interrupt level
• Thirteen levels of on-chip module interrupt priority can be set
• User-mode interrupt disabling function
Figure 9.1 shows a block diagram of the INTC.
By setting the interrupt priority registers, the priorities of external interrupts can be selected
from 15 levels for individual request sources.
An NMI input-level bit indicates the NMI pin state. By reading this bit in the interrupt
exception handling routine, the pin state can be checked, enabling it to be used as a noise
canceller.
Whether to mask NMI requests when the BL bit in SR is set to 1 can be selected.
By setting thirteen interrupt priority registers, the priorities of on-chip module interrupts can be
selected from 30 levels for individual request sources.
Specifying an interrupt mask level in the user interrupt mask level register (USERIMASK)
disables interrupts which are not higher in priority than the specified mask level in user mode.
Features
Section 9 Interrupt Controller (INTC)
Rev. 2.00 May 22, 2009 Page 233 of 1982
Section 9 Interrupt Controller (INTC)
REJ09B0256-0200
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