HD64F7045F28V Renesas Electronics America, HD64F7045F28V Datasheet - Page 37

• Manufacturer Part Number: HD64F7045F28V
• Description: IC SH2 MCU FLASH 144QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7040r

Specifications of HD64F7045F28V

• 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 Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 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: -

Section 3 Data Formats
In single data transfers, the A0G and A1G registers can be handled as independent registers. Eight
bits of data can be loaded to or stored from the A0G and A1G registers.
When the A0G or A1G register is the source register, only eight bits are stored from the register.
The top bits are sign extended.
When the A0G or A1G register is the destination register, the bottom eight bits are loaded to the
register. The A0 and A1 registers are not cleared with zeros, so the values are preserved.
Tables 3.1 and 3.2 list the data formats on the register with the DSP instructions. With some
instructions, not all registers can be accessed. For example, the PMULS instruction can specified
the A1 register as the source register, but not the A0 register. For more information, see the
description of the instruction.
Figure 3.5 shows the relationship between the DSP registers and buses during data transfers.
Rev. 5.00 Jun 30, 2004 page 21 of 512
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