HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 195

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

SH7720 Group, SH7721 Group
3.5.7
Figure 3.16 shows the multiply operation flow. Table 3.25 shows the variation of this type of
operation and table 3.26 shows the correspondence between each operand and registers. The
multiply operation of the DSP unit is single-word signed single-precision multiplication. These
operations are executed in the DSP stage, as shown in figure 3.10. The DSP stage is the same
stage as the MA stage in which memory access is performed.
If a double-precision multiply operation is needed, the CPU standard double-word multiply
instructions can be made of use.
Table 3.25 Variation of Fixed-Point Multiply Operation
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010
Mnemonic
PMULS
Fixed-Point Multiply Operation
Function
Signed multiplication
39
Figure 3.16 Fixed-Point Multiply Operation Flow
31
S
0
Source 1
39
31
S
MAC
Destination
0
Source 1
Se
39
1 0
0
31
S
Source 2
Source 2
Sf
Ignored
Section 3 DSP Operating Unit
0
Destination
Dg
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