10.2.3.20 Device Speed (DEVSPEED) Register
The Device Speed register shows the device speed grade and is shown in Figure 10-30 and described in Table 10-49.
Figure 10-30 Device Speed Register (DEVSPEED)
| 31 |
30 |
29 |
28 |
27 |
26 |
25 |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
| Reserved |
DEVSPEED |
Reserved |
ARMSPEED |
| R-n |
R-n |
R-n |
R-n |
| Legend: R = Read only; -n = value after reset |
Table 10-49 Device Speed Register Field Descriptions
| Bit |
Field |
Description |
| 31-28 |
Reserved |
Reserved. Read only |
| 27-16 |
DEVSPEED |
Indicates the speed of the device (read only)
- 0b0000 0000 0000 = 800 MHz
- 0b0000 0000 0001 = 1000 MHz
- 0b0000 0000 001x = 1200 MHz
- 0b0000 0000 01xx = Reserved
- 0b0000 0000 1xxx = Reserved
- 0b0000 0001 xxxx = Reserved
- 0b0000 001x xxxx = Reserved
- 0b0000 01xx xxxx = Reserved
- 0b0000 1xxx xxxx = 1200 MHz
- 0b0001 xxxx xxxx= 1000 MHz
- 0b001x xxxx xxxx = 800 MHz
|
| 15-12 |
Reserved |
Reserved. Read only |
| 11-0 |
ARMSPEED |
Indicates the speed of the ARM (read only)
- 0b0000 0000 0000 = 800 MHz
- 0b0000 0000 0001 = 1000 MHz
- 0b0000 0000 001x = 1200 MHz
- 0b0000 0000 01xx = 1350 MHz(1)
- 0b0000 0000 1xxx = 1400 MHz(1)
- 0b0000 0001 xxxx = Reserved
- 0b0000 001x xxxx = 1400 MHz(1)
- 0b0000 01xx xxxx = 1350.8 MHz(1)
- 0b0000 1xxx xxxx = 1200 MHz
- 0b0001 xxxx xxxx= 1000 MHz
- 0b001x xxxx xxxx = 800 MHz
|
(1) Possible future support.