Atmel Evaluation Kit AT91SAM9X25-EK AT91SAM9X25-EK Hoja De Datos
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AT91SAM9X25-EK
194
SAM9X25 [DATASHEET]
11054E–ATARM–10-Mar-2014
22.13.7 PMC UTMI Clock Configuration Register
Name:
CKGR_UCKR
Address:
0xFFFFFC1C
Access:
Read-write
• UPLLEN: UTMI PLL Enable
0 = The UTMI PLL is disabled.
1 = The UTMI PLL is enabled.
When UPLLEN is set, the LOCKU flag is set once the UTMI PLL startup time is achieved.
• UPLLCOUNT: UTMI PLL Start-up Time
Specifies the number of Slow Clock cycles multiplied by 8 for the UTMI PLL start-up time.
• BIASEN: UTMI BIAS Enable
0 = The UTMI BIAS is disabled.
1 = The UTMI BIAS is enabled.
• BIASCOUNT: UTMI BIAS Start-up Time
Specifies the number of Slow Clock cycles for the UTMI BIAS start-up time.
31
30
29
28
27
26
25
24
BIASCOUNT
–
–
–
BIASEN
23
22
21
20
19
18
17
16
UPLLCOUNT
–
–
–
UPLLEN
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
–