h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 128

• Manufacturer Part Number: h8s-2172
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
• Manufacturer: Renesas Electronics Corporation.

Rev. 2.00, 03/04, page 96 of 534
Bit
2
1
0
Bit Name
MXC2
MXC1
MXC0
Initial
Value
0
0
0
R/W
R/W
R/W
R/W
Description
Address Multiplex Select
These bits select the size of the shift toward the lower
half of the row address in row address/column address
multiplexing. In burst operation on the DRAM interface,
these bits also select the row address bits to be used
for comparison.
000: 8-bit shift
•
•
001: 9-bit shift
•
•
010: 10-bit shift
•
•
011: 11-bit shift
•
When 8-bit access space is designated:
Row address bits A23 to A8 used for comparison
When 16-bit access space is designated:
Row address bits A23 to A9 used for comparison
When 8-bit access space is designated:
Row address bits A23 to A9 used for comparison
When 16-bit access space is designated:
Row address bits A23 to A10 used for comparison
When 8-bit access space is designated:
Row address bits A23 to A10 used for comparison
When 16-bit access space is designated:
Row address bits A23 to A11 used for comparison
When 8-bit access space is designated:
Row address bits A23 to A11 used for comparison
When 16-bit access space is designated:
Row address bits A23 to A12 used for comparison