Register bit assignment – Digi NS9750 User Manual
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S y s t e m C o n t r o l M o d u l e
Register bit assignment
System Memory Chip Select 2 Static Memory Base and Mask registers
Address: A090 0200 / 0204
These control registers set the base and mask for system memory chip select 2, with
a minimum size of 4K. The powerup default settings produce a memory range of
0x6000 0000 — 0x6FFF FFFF
.
Bits
Access
Mnemonic
Reset
Description
D31:12
R/W
CS1B
0x50000
Chip select 1 base
Base address for chip select 1 (static).
D11:00
N/A
Reserved
N/A
N/A
D31:12
R/W
CS1M
0xF0000
Chip select 1 mask
Mask or size for the chip select 1 (static).
D11:00
N/A
Reserved
N/A
N/A
Table 196: System Memory Chip Select 1 Memory Base and Mask registers
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
Chip select 1 base (CS1B)
Reserved
Chip select 1 base (CS1B)
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
31
29
28
27
26
25
24
23
22
21
20
19
18
17
16
30
Chip select 1 mask (CS1M)
Reserved
Chip select 1 mask (CS1M)