220
©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
SYS_DPLL_CTRL.SYS_DPLL_MANU_REF_CFG
Select reference to be used for manual reference selection mode.
SYS_DPLL_CTRL.SYS_DPLL_DAMPING
System DPLL loop filter damping factor.
Table 277: SYS_DPLL_CTRL.SYS_DPLL_MANU_REF_CFG Bit Field Locations and Descriptions
Offset
Address
(Hex)
SYS_DPLL_CTRL.SYS_DPLL_MANU_REF_CFG Bit Field Locations
D7
D6
D5
D4
D3
D2
D1
D0
000h
RESERVED[7:5]
MANUAL_REFERENCE[4:0]
SYS_DPLL_CTRL.SYS_DPLL_MANU_REF_CFG Bit Field Descriptions
Bit Field Name
Field Type Default Value
Description
RESERVED
N/A
-
This field must not be modified from the read value
MANUAL_REFERENCE[4:
0]
R/W
0
Index of manually selected reference input when 'manual' reference mode is
enabled.
0x00 = CLK0
0x01 = CLK1
0x02 = CLK2
0x03 = CLK3
0x04 = CLK4
0x05 = CLK5
0x06 = CLK6
0x07 = CLK7
0x08 = CLK8
0x09 = CLK9
0x0A = CLK10
0x0B = CLK11
0x0C = CLK12
0x0D = CLK13
0x0E = CLK14
0x0F = CLK15
0x10 = reserved
0x11 = reserved
0x12 = XO_DPLL
Table 278: SYS_DPLL_CTRL.SYS_DPLL_DAMPING Bit Field Locations and Descriptions
Offset
Address
(Hex)
SYS_DPLL_CTRL.SYS_DPLL_DAMPING Bit Field Locations
D7
D6
D5
D4
D3
D2
D1
D0
001h
RESERVED[7:4]
DAMP_FTR[3:0]