DF70845AD80FPV Renesas Electronics America, DF70845AD80FPV Datasheet - Page 185
DF70845AD80FPV
Manufacturer Part Number
DF70845AD80FPV
Description
IC SUPERH MCU FLASH 112LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7080r
Datasheet
1.DF70844AD80FPV.pdf
(1644 pages)
Specifications of DF70845AD80FPV
Core Size
32-Bit
Program Memory Size
512KB (512K x 8)
Core Processor
SH-2
Speed
80MHz
Connectivity
EBI/EMI, FIFO, I²C, SCI, SSU
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
76
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
112-LQFP
No. Of I/o's
76
Ram Memory Size
32KB
Cpu Speed
80MHz
Digital Ic Case Style
LQFP
Supply Voltage Range
3V To 3.6V, 4.5V To 5.5V
Embedded Interface Type
I2C, SCI
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
R0K570865S001BE - KIT STARTER FOR SH7086R0K570865S000BE - KIT STARTER FOR SH7086HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF70845AD80FPV
Manufacturer:
TAIYO
Quantity:
40 000
Company:
Part Number:
DF70845AD80FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 185 of 1644
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6.6
6.6.1
The sequence of interrupt operations is explained below. Figure 6.3 is a flowchart of the
operations.
1. The interrupt request sources send interrupt request signals to the interrupt controller.
2. The interrupt controller selects the highest priority interrupt from interrupt requests sent,
3. The interrupt controller compares the priority level of the selected interrupt request with the
4. When the interrupt controller accepts an interrupt, a low level is output from the IRQOUT pin.
5. The CPU detects the interrupt request sent from the interrupt controller in the decode stage of
6. SR and PC are saved onto the stack.
7. The priority level of the accepted interrupt is copied to bits (I3 to I0) in SR.
8. When the accepted interrupt is sensed by level or is from an on-chip peripheral module, a high
9. The CPU reads the start address of the exception handling routine from the exception vector
according to the priority levels set in interrupt priority registers A to F and H to M (IPRA to
IPRF and IPRH to IPRM). Interrupts that have lower-priority than that of the selected interrupt
are ignored*. If interrupts that have the same priority level or interrupts within a same module
occur simultaneously, the interrupt with the highest priority is selected according to the default
priority shown in table 6.3.
interrupt mask bits (I3 to I0) in the status register (SR) of the CPU. If the priority level of the
selected request is equal to or less than the level set in bits I3 to I0, the request is ignored. If
the priority level of the selected request is higher than the level in bits I3 to I0, the interrupt
controller accepts the request and sends an interrupt request signal to the CPU.
an instruction to be executed. Instead of executing the decoded instruction, the CPU starts
interrupt exception handling.
level is output from the IRQOUT pin. When the accepted interrupt is sensed by edge, a high
level is output from the IRQOUT pin at the moment when the CPU starts interrupt exception
processing instead of instruction execution as noted in 5. above. However, if the interrupt
controller accepts an interrupt with a higher priority than the interrupt just to be accepted, the
IRQOUT pin holds low level.
table for the accepted interrupt, branches to that address, and starts executing the program.
This branch is not a delayed branch.
Interrupt Operation
Interrupt Sequence
Rev. 3.00 May 17, 2007 Page 127 of 1582
Section 6 Interrupt Controller (INTC)
REJ09B0181-0300
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