HD6477021X20V Renesas Electronics America, HD6477021X20V Datasheet - Page 41
HD6477021X20V
Manufacturer Part Number
HD6477021X20V
Description
MCU 5V 32K PB-FREE 100-TQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH7020r
Datasheet
1.HD6417020SVX12IV.pdf
(511 pages)
Specifications of HD6477021X20V
Core Processor
SH-1
Core Size
32-Bit
Speed
20MHz
Connectivity
EBI/EMI, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6477021X20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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2.2.2
Memory data formats are classified into bytes, words, and long words. 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 long word data starting from an address other than 4n. In such cases, the
data accessed cannot be guaranteed. The hardware stack area, which is referred to by the hardware
stack pointer (SP, R15), uses only long word data starting from address 4n because this area stores
the program counter and status register (figure 2.5).
2.2.3
Byte (8-bit) immediate data is located in the instruction code. Immediate data accessed by the
MOV, ADD, and CMP/EQ instructions is sign-extended and is handled in registers as long word
data. Immediate data accessed by the TST, AND, OR, and XOR instructions is zero-extended and
is handled as long word data. Consequently, AND instructions with immediate data always clear
the upper 24 bits of the destination register.
Word or long word immediate data is not located in the instruction code but rather is stored in a
memory table. The memory table is accessed by a immediate data transfer instruction (MOV)
using the PC relative addressing mode with displacement.
18 RENESAS
Data Format in Memory
Immediate Data Format
Address 2n
Address 4n
31
Figure 2.4 Data Format in Registers
Figure 2.5 Data Format in Memory
Address m
31
7
15
31
Byte
Word
0
Address m + 1
Long word
23
7
Byte
Long word
0
0
Address m + 2
15
7
15
Byte
Word
0
Address m + 3
7
7
0
Byte
0
0
0
0
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