HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 46

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 2 CPU
2.2
2.2.1
Register operands are always longwords (32 bits). When the memory operand is only a byte (8
bits) or a word (16 bits), it is sign-extended into a longword when loaded into a register (figure
2.4).
2.2.2
Memory data formats are classified into bytes, words, and longwords. Byte data can be accessed
from any address, but an address error will occur if you try to access word data starting from an
address other than 2n or longword data starting from an address other than 4n. In such cases, the
data accessed cannot be guaranteed. The hardware stack area, referred to by the hardware stack
pointer (SP, R15), uses only longword data starting from address 4n because this area holds the
program counter and status register (figure 2.5).
Rev. 5.00 Jan 06, 2006 page 24 of 818
REJ09B0273-0500
Data Formats
Data Format in Registers
Data Format in Memory
Address 2n
Address 4n
31
Figure 2.4 Data Format in Registers
Figure 2.5 Data Format in Memory
Address m
31
Byte
Address m + 1
Word
Longword
23
Byte
Longword
Address m + 2
15
Byte
Address m + 3
Word
7
Byte
0
0