UPD705100GJ-100-8 NEC [NEC], UPD705100GJ-100-8 Datasheet - Page 26

• Manufacturer Part Number: UPD705100GJ-100-8
• Description: V830TM 32-BIT MICROCONTROLLER
• Manufacturer: NEC [NEC]

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10. ADDRESS SPACE
addresses to the memory space. The maximum address is 2
consists of multiple bytes, it is defined such that the byte data at the low-order address contains the LSB and that
at the high-order address contains the MSB (little-endian ordering), unless specified otherwise.
four-byte format is called word data. For data consisting of multiple bytes, the low-order address on the right and the
high-order address on the left, as indicated below.
The V830 supports 4G-byte linear address spaces for both the memory space and I/O space. It assigns 32-bit
Byte data aligned with each address is defined such that bits 0 and 7 are the LSB and MSB, respectively. If data
According to V830 terminology, data arranged in two-byte format is called halfword data, while that arranged in
Byte at address A
Halfword at address A
Word at address A
31
A + 3
24 23
32
– 1. It also assigns 32-bit addresses to the I/O space.
A + 2
16 15
15
A + 1
A + 1
8
8
7
7
7
A
A
A
0
0
0
Data
Address
Data
Address
Data
Address
PD705100