9.1 Virtual Memory Space
9-2
9.1
Virtual Memory Space
The virtual memory space is the memory area that can be accessed by using the read memory
command (MEM_RD: 1Dh) and write memory command (MEM_WR: 1Eh).
By adopting the concept of virtual memory, the memory areas that vary among devices and
vendors can be accessed at common addresses.
(h)
FFFF FFFF
Vendor-
s
pecific area
8000 4002
Adju
s
tment operation area
8000 4000
8000 0000
7FFF FFFF
Re
s
erved
1000 0000
0FFF FFFF
Device information area
0001 02FF
Common parameter area
0001 0000
0000 0
3
FF
ID information area
0000 0000
Vendor-
s
pecific area
• Adju
s
tment operation area
Device information area
• Common parameter area
• Common parameter
s
can be read or written.
• ID information area
• Data that can be read/written u
s
ing the ID_RD command
• Vendor ID code, device code, device ver
s
ion, etc.
