HD6417041AVF16V Renesas Electronics America, HD6417041AVF16V Datasheet - Page 92
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6417041AVF16V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 4 Instruction Features
4.15
The overflow prevention function (saturation operation) is specified by the S bit of the SR register.
This function is valid for arithmetic operations executed by the DSP unit and multiply and
accumulate operations executed by the existing SH-1 and SH-2. An overflow occurs when the
operation result exceeds the bounds that can be expressed as a two’s complement (not including
the guard bits).
Table 4.29 shows the overflow definitions for fixed decimal point arithmetic operations. Table
4.30 shows the overflow definitions for integer arithmetic operations. Multiply/Accumulate
calculation instructions (MAC) supported by previous SuperH RISC engines are performed on 64-
bit registers (MACH and MACL), so the overflow value differs from the maximum and minimum
values. They are defined exactly the same as before.
Table 4.29 Overflow Definitions for Fixed Decimal Point Arithmetic Operations
Sign
Positive
Negative
Table 4.30 Overflow Definitions for Integer Arithmetic Operations
Sign
Positive
Negative
Note:
When the overflow prevention function is specified, overflows do not occur. Naturally, the
overflow bit (V bit) is not set. When the CS bits specify overflow mode, the DC bit is not set
either.
Rev. 5.00 Jun 30, 2004 page 76 of 512
REJ09B0171-0500O
* Don’t care bits have no effect.
Overflow Prevention Function (Saturation Operation)
Overflow Condition
Result > 1–2
Result < –1
Overflow Condition
Result > 2
Result < –2
–15
–15
–31
– 1
Maximum/Minimum
1–2
–1
Maximum/Minimum
2
–2
–15
–15
–31
– 1
Hexadecimal Display
007FFFFFFF
FF80000000
Hexadecimal Display
007FFF****
FF8000****
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