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©2018 Integrated Device Technology, Inc
September 12, 2018
8A3xxxx Family Programming Guide
DPLL_0.DPLL_MODE
Select state machine transition mode and DPLL operation mode.
TRIGGER: Writing to this byte triggers a read and activation in hardware of all the bytes of the DPLL module.
DPLL_0.DPLL_PHASE_MEASUREMENT_CFG Bit Field Descriptions
Bit Field Name
Field Type Default Value
Description
PFD_FB_CLK_SEL[7:4]
R/W
0
Select the feedback clock going into the phase detector.
The feedback clock selected must have the same frequency as the reference
clock selected.
0x0 = CLK0
0x1 = CLK1
0x2 = CLK2
0x3 = CLK3
0x4 = CLK4
0x5 = CLK5
0x6 = CLK6
0x7 = CLK7
0x8 = CLK8
0x9 = CLK9
0xA = CLK10
0xB = CLK11
0xC = CLK12
0xD = CLK13
0xE = CLK14
0xF = CLK15
PFD_REF_CLK_SEL[3:0]
R/W
0
Select the reference clock going into the phase detector.
The reference clock selected must have the same frequency as the feedback
clock selected.
0x0 = CLK0
0x1 = CLK1
0x2 = CLK2
0x3 = CLK3
0x4 = CLK4
0x5 = CLK5
0x6 = CLK6
0x7 = CLK7
0x8 = CLK8
0x9 = CLK9
0xA = CLK10
0xB = CLK11
0xC = CLK12
0xD = CLK13
0xE = CLK14
0xF = CLK15