HD6417727F100C Renesas Electronics America, HD6417727F100C Datasheet - Page 255
HD6417727F100C
Manufacturer Part Number
HD6417727F100C
Description
IC SUPERH MPU ROMLESS 240QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7700r
Datasheet
1.HD6417727BP100CV.pdf
(1098 pages)
Specifications of HD6417727F100C
Core Processor
SH-3 DSP
Core Size
32-Bit
Speed
100MHz
Connectivity
FIFO, SCI, SIO, SmartCard, USB
Peripherals
DMA, LCD, POR, WDT
Number Of I /o
104
Program Memory Type
ROMless
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
1.6 V ~ 2.05 V
Data Converters
A/D 6x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
240-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417727F100C
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7.4
7.4.1
The sequence of interrupt operations is explained below. Figure 7.3 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 the interrupt requests sent,
3. The priority level of the interrupt selected by the interrupt controller is compared with the
4. Detection timing: The INTC operates, and notifies the CPU of interrupt requests, in
5. The interrupt source code is set in the interrupt event registers (INTEVT and INTEVT2).
6. The status register (SR) and program counter (PC) are saved to SSR and SPC, respectively.
7. The block bit (BL), mode bit (MD), and register bank bit (RB) in SR are set to 1.
8. The CPU jumps to the start address of the interrupt handler (the sum of the value set in the
Notes: 1. The interrupt mask bits (I3 to I0) in the status register (SR) are not changed by
following the priority levels set in interrupt priority registers A to G (IPRA to IPRG). Lower
priority interrupts are held pending. If two of these interrupts have the same priority level or if
multiple interrupts occur within a single module, the interrupt with the highest default priority
or the highest priority within its IPR setting unit (as indicated in tables 7.4 and 7.5) is selected.
interrupt mask bits (I3 to I0) in the status register (SR) of the CPU. If the request priority level
is higher than the level in bits I3 to I0, the interrupt controller accepts the interrupt and sends
an interrupt request signal to the CPU.
synchronization with the peripheral clock (Pφ). The CPU receives an interrupt at a break in
instructions.
vector base register (VBR) and H'00000600). This jump is not a delayed branch. The interrupt
handler may branch with the INTEVT and INTEVT2 register value as its offset in order to
identify the interrupt source. This enables it to branch to the processing routine for the
individual interrupt source.
2. The interrupt source flag should be cleared in the interrupt handler. To ensure that an
INTC Operation
Interrupt Sequence
acceptance of an interrupt in the SH7727.
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 7.8 (Time for priority decision and SR mask bit comparison) before clearing the
BL bit or executing an RTE instruction.
Rev.6.00 Mar. 27, 2009 Page 197 of 1036
Section 7 Interrupt Controller (INTC)
REJ09B0254-0600
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