HD6417750RF200DV Renesas Electronics America, HD6417750RF200DV Datasheet - Page 237
HD6417750RF200DV
Manufacturer Part Number
HD6417750RF200DV
Description
MPU 1.5/3.3V 0K I-TEMP PB-FREE 2
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417750RBP240DV.pdf
(1164 pages)
Specifications of HD6417750RF200DV
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
48K x 8
Voltage - Supply (vcc/vdd)
1.35 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
208-QFP Exposed Pad, 208-eQFP, 208-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
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Quantity
Price
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Part Number:
HD6417750RF200DV
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FREESCALE
Quantity:
450
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5.3
5.3.1
In exception handling, the contents of the program counter (PC), status register (SR), and R15 are
saved in the saved program counter (SPC), saved status register (SSR), and saved general
register15(SGR), and the CPU starts execution of the appropriate exception handling routine
according to the vector address. An exception handling routine is a program written by the user to
handle a specific exception. The exception handling routine is terminated and control returned to
the original program by executing a return-from-exception instruction (RTE). This instruction
restores the PC and SR contents and returns control to the normal processing routine at the point at
which the exception occurred.
The SGR contents are not written back to R15 by an RTE instruction.
The basic processing flow is as follows. See section 2, Programming Model, for the meaning of
the individual SR bits.
1. The PC, SR, and R15 contents are saved in SPC, SSR, and SGR.
2. The block bit (BL) in SR is set to 1.
3. The mode bit (MD) in SR is set to 1.
4. The register bank bit (RB) in SR is set to 1.
5. In a reset, the FPU disable bit (FD) in SR is cleared to 0.
6. The exception code is written to bits 11–0 of the exception event register (EXPEVT) or
7. The CPU branches to the determined exception handling vector address, and the exception
5.3.2
The reset vector address is fixed at H'A000 0000. General exception and interrupt vector addresses
are determined by adding the offset for the specific event to the vector base address, which is set
by software in the vector base register (VBR). In the case of the TLB miss exception, for example,
the offset is H'0000 0400, so if H'9C08 0000 is set in VBR, the exception handling vector address
will be H'9C08 0400. If a further exception occurs at the exception handling vector address, a
duplicate exception will result, and recovery will be difficult; therefore, fixed physical addresses
(P1, P2) should be specified for vector addresses.
interrupt event register (INTEVT).
handling routine begins.
Exception Handling Functions
Exception Handling Flow
Exception Handling Vector Addresses
Rev.7.00 Oct. 10, 2008 Page 151 of 1074
Section 5 Exceptions
REJ09B0366-0700
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