HD6417041AVF16V Renesas Electronics America, HD6417041AVF16V Datasheet - Page 429
HD6417041AVF16V
Manufacturer Part Number
HD6417041AVF16V
Description
IC SUPERH MCU ROMLESS 144QFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7040r
Specifications of HD6417041AVF16V
Core Processor
SH-2
Core Size
32-Bit
Speed
28.7MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
98
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Available stocks
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Manufacturer
Quantity
Price
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Part Number:
HD6417041AVF16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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7.2
Contention occurs in four cases. When it occurs, the slot splits and requires at least two cycles.
1. Contention between instruction fetch (IF) and memory access (MA)
2. Contention when the previous instruction’s destination register is used
3. Multiplier access contention
4. Contention between memory stores (MA) and either DSP operations or memory loads
7.2.1
Basic Operation when IF and MA Are in Contention (Common): The IF and MA stages both
access memory, so they cannot operate simultaneously. When the IF and MA stages both try to
access memory within the same slot, the slot splits as shown in figure 7.6. When there is a WB, it
is executed immediately after the MA ends.
(WB/DSP)
Instruction 1
Instruction 2
Instruction 3
Instruction 4
Instruction 5
Instruction 1
Instruction 2
Instruction 3
Instruction 4
Instruction 5
Contention
Contention between Instruction Fetch (IF) and Memory Access (MA)
When MA and IF are in contention, the following occurs:
Figure 7.6 Operation when IF and MA Are in Contention
IF
IF
A
A
ID
ID
IF
IF
B
B
EX
EX
ID
ID
IF
IF
C
C
MA
MA
EX
ID
—
—
IF
D
D
W/D
W/D
MA
EX
EX
ID
ID
IF
IF
E
W/D
MA
EX
ID
—
—
F
E
W/D
EX
EX
Rev. 5.00 Jun 30, 2004 page 413 of 512
ID
G
IF
MA of instruction 1 and IF of
instruction 4 contend at D
MA of instruction 2 and IF of
instruction 5 contend at E
EX
ID
F
EX
Section 7 Pipeline Operation
G
REJ09B0171-0500O
: Slot
: Slot
Split at D
Split at E
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