HD6417751RF240V Renesas Electronics America, HD6417751RF240V Datasheet - Page 269
HD6417751RF240V
Manufacturer Part Number
HD6417751RF240V
Description
MPU 1.5/3.3V 0K PB-FREE 256-QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7750r
Datasheet
1.D6417751RBP200DV.pdf
(1226 pages)
Specifications of HD6417751RF240V
Core Processor
SH-4
Core Size
32-Bit
Speed
240MHz
Connectivity
EBI/EMI, FIFO, SCI, SmartCard
Peripherals
DMA, POR, WDT
Number Of I /o
39
Program Memory Type
ROMless
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-20°C ~ 75°C
Package / Case
256-QFP Exposed Pad, 256-eQFP, 256-HQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417751RF240V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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5.6.4
With some instructions, such as instructions that make two accesses to memory, and the
indivisible pair comprising a delayed branch instruction and delay slot instruction, multiple
exceptions occur. Care is required in these cases, as the exception priority order differs from the
normal order.
1. Instructions that make two accesses to memory
2. Indivisible delayed branch instruction and delay slot instruction
With MAC instructions, memory-to-memory arithmetic/logic instructions, and TAS
instructions, two data transfers are performed by a single instruction, and an exception will be
detected for each of these data transfers. In these cases, therefore, the following order is used
to determine priority.
a. Data address error in first data transfer
b. TLB miss in first data transfer
c. TLB protection violation in first data transfer
d. Initial page write exception in first data transfer
e. Data address error in second data transfer
f. TLB miss in second data transfer
g. TLB protection violation in second data transfer
h. Initial page write exception in second data transfer
As a delayed branch instruction and its associated delay slot instruction are indivisible, they
are treated as a single instruction. Consequently, the priority order for exceptions that occur in
these instructions differs from the usual priority order. The priority order shown below is for
the case where the delay slot instruction has only one data transfer.
a. A check is performed for the abort type and reexecution type exceptions of priority levels 1
b. A check is performed for the abort type and reexecution type exceptions of priority levels 1
c. A check is performed for the completion type exception of priority level 2 in the delayed
d. A check is performed for the completion type exception of priority level 2 in the delay slot
e. A check is performed for priority level 3 in the delayed branch instruction and priority
f. A check is performed for priority level 4 in the delayed branch instruction and priority
and 2 in the delayed branch instruction.
and 2 in the delay slot instruction.
branch instruction.
instruction.
level 3 in the delay slot instruction. (There is no priority ranking between these two.)
level 4 in the delay slot instruction. (There is no priority ranking between these two.)
Priority Order with Multiple Exceptions
Rev.4.00 Oct. 10, 2008 Page 169 of 1122
REJ09B0370-0400
5. Exceptions
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