HD6417750SF167V Renesas Electronics America, HD6417750SF167V Datasheet - Page 288

• Manufacturer Part Number: HD6417750SF167V
• Description: MPU 3V 16K PB-FREE 208-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7750r

Specifications of HD6417750SF167V

• Core Processor: SH-4
• Core Size: 32-Bit
• Speed: 167MHz
• Connectivity: EBI/EMI, FIFO, SCI, SmartCard
• Peripherals: DMA, POR, WDT
• Number Of I /o: 28
• Program Memory Type: ROMless
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.6 V ~ 2 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 208-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

Section 6 Floating-Point Unit (FPU)
Details
Definitions: The data patterns that cause the problem are defined below. Item (A) to (D) in the
tables correspond to the following data patterns.
• Double-precision denormalized number (A)
• Double-precision denormalized number (B)
• Double-precision qNaN (C)
• Double-precision qNaN (D)
Incorrect Operation Results: Table 6.3 lists instructions and data combinations that produce
incorrect operation results when FPSCR.DN = I'b0 (mode in which denormalized numbers are
treated as denormalized numbers).
Input items (A) to (C) are the data patterns defined in “Definitions” above, and problem types (1)
to (7) correspond to the incorrect operation results classified in tables 6.4 to 6.6.
The incorrect operation results for problem types (1), (2), (3), and (7) are zero or infinity.
In problem types (4), (5), and (6), an FPU error exception trap is generated and no value is output
for qNaN.
Case (a) corresponds to problem types (1), (2), and (3); case (b) corresponds to (7); and case (c)
corresponds to (4), (5), and (6).
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REJ09B0366-0700
H'00000000_XXXXXXXX or H'80000000_XXXXXXXX (X: 0 or 1)
However, H'XXXXXXXX != H'00000000
H'000YYYYY_XXXXXXXX or H'800YYYYY_XXXXXXXX (X: 0 or 1)
However, H'YYYYY != H'00000
However, H'XXXXXXXX != H'00000000
H'7FFXXXXX_XXXXXXXX or H'FFFXXXXX_XXXXXXXX (X: 0 or 1)
However, H'XXXXX_XXXXXXXX != H'00000_00000000
Note: As defined