TCI6636K2H Datasheet, PDF (298/362 Pages) Texas Instruments – Multicore DSP+ARM KeyStone II System-on-Chip (SoC)

TCI6636K2H
Multicore DSP+ARM KeyStone II System-on-Chip (SoC)
SPRS835F—October 2013
10.5.2.1 PLL Secondary Control Register (SECCTL)
The PLL Secondary Control Register contains extra fields to control the Main PLL and is shown in Figure 10-8 and
described in Table 10-16.
Figure 10-8 PLL Secondary Control Register (SECCTL)
31
24
23
22
19
18
0
Reserved
BYPASS
OUTPUT DIVIDE
Reserved
R-0000 0000
RW-1
RW-0001
RW-001 0000 0000 0000 0000
Legend: R/W = Read/Write; R = Read only; -n = value after reset
Table 10-16 PLL Secondary Control Register Field Descriptions
Bit
Field
Description
31-24 Reserved
Reserved
23
BYPASS
PLL bypass mode:
0 = PLL is not in BYPASS mode
1 = PLL is in BYPASS mode
22-19 OUTPUT DIVIDE
Output divider ratio bits
0h = ÷1. Divide frequency by 1
1h = ÷2. Divide frequency by 2
2h = ÷3. Divide frequency by 3
3h = ÷4. Divide frequency by 4
4h - Fh = ÷5 to ÷16. Divide frequency range: divide frequency by 5 to divide frequency by 80.
18-0 Reserved
End of Table 10-16
Reserved
10.5.2.2 PLL Controller Divider Register (PLLDIV3, and PLLDIV4)
The PLL Controller Divider Registers (PLLDIV3 and PLLDIV4) are shown in Figure 10-9 and described in
Table 10-17. The default values of the RATIO field on a reset for PLLDIV3, and PLLDIV4 are different as mentioned
in the footnote of Figure 10-9.
Figure 10-9 PLL Controller Divider Register (PLLDIVn)
31
16
15
14
Reserved
Dn ⁽¹⁾ EN
R-0
R/W-1
Reserved
R-0
8
7
0
RATIO
R/W-n ⁽²⁾
Legend: R/W = Read/Write; R = Read only; -n = value after reset
1 D3EN for PLLDIV3; D4EN for PLLDIV4
2 n=02h for PLLDIV3; n=03h for PLLDIV4
Table 10-17 PLL Controller Divider Register Field Descriptions (Part 1 of 2)
Bit
Field
Description
31-16 Reserved
Reserved
15
DnEN
Divider Dn enable bit (See footnote of Figure 10-9)
0 = Divider n is disabled
1 = No clock output. Divider n is enabled.
298 TCI6636K2H Peripheral Information and Electrical Specifications
Copyright 2013 Texas Instruments Incorporated
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