Register bit assignment – Digi NS9750 User Manual
Page 331
w w w . d i g i e m b e d d e d . c o m
3 0 7
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 0 Static Memory Base and Mask registers
Address: A090 01F0 / 01F4
These control registers set the base and mask for system memory chip select 0, with
a minimum size of 4K. The powerup default settings produce a memory range of
0x4000 0000 — 0x4FFF FFFF
.
Bits
Access
Mnemonic
Reset
Description
D31:12
R/W
CS3B
0x30000
Chip select 3 base
Base address for chip select 3 (dynamic).
D11:00
N/A
Reserved
N/A
N/A
D31:12
R/W
CS3M
0xF0000
Chip select 3 mask
Mask or size for chip select 3 (dynamic).
D11:00
N/A
Reserved
N/A
N/A
Table 194: System Memory Chip Select 3 Dynamic Memory Base & 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 3 base (CS3B)
Reserved
Chip select 3 base (CS3B)
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 3 mask (CS3M)
Reserved
Chip select 3 mask (CS3M)