Achronix Speedster22i User Macro Guide User Manual
Page 209

PLL/DLL Clock Generators
ACX_CLKGEN
Speedster Macro Cell Library
PAGE 192
dyn_phase1
Clkout[1] Dynamic Phase Shift Select. If en_phase1 is
enabled,
0: Clkout[1] phase shift determined by static_phase1
parameter.
1: Clkout[1] phase shift determined from the
number of phase_inc[1] rising edges.
1’b0,1’b1
1’b0
dyn_phase2
Clkout[2] Dynamic Phase Shift Select. If en_phase2 is
enabled,
0: Clkout[2] phase shift determined by static_phase2
parameter.
1: Clkout[2] phase shift determined from the
number of phase_inc[2] rising edges.
1’b0,1’b1
1’b0
dyn_phase3
Clkout[3] Dynamic Phase Shift Select. If en_phase3 is
enabled,
0: Clkout[3] phase shift determined by static_phase3
parameter.
1: Clkout[3] phase shift determined from the
number of phase_inc[3] rising edges.
1’b0,1’b1
1’b0
byp_clkdiv0
Clkout[0] Output Synthesizer Bypass.
0: Clkout[0] Output Synthesizer Enabled.
1: Clkout[0] Output Synthesizer Bypassed.
1’b0,1’b1
1’b1
byp_clkdiv1
Clkout[1] Output Synthesizer Bypass.
0: Clkout[1] Output Synthesizer Enabled.
1: Clkout[1] Output Synthesizer Bypassed.
1’b0,1’b1
1’b1
byp_clkdiv2
Clkout[2] Output Synthesizer Bypass.
0: Clkout[2] Output Synthesizer Enabled.
1: Clkout[2] Output Synthesizer Bypassed.
1’b0,1’b1
1’b1
byp_clkdiv3
Clkout[3] Output Synthesizer Bypass.
0: Clkout[3] Output Synthesizer Enabled.
1: Clkout[3] Output Synthesizer Bypassed.
1’b0,1’b1
1’b1
high_cnt0
The output synthesizer divides the PLL output clock by
'high_cnt0 + low_cnt0'. The ratio of high_cnt0 to
'high_cnt0 + low_cnt0' determines the output duty
cycle.
10’h000-10’h3FF
10’h0
low_cnt0
The output synthesizer divides the PLL output clock by
'high_cnt0 + low_cnt0'. The ratio of high_cnt0 to
'high_cnt0 + low_cnt0' determines the output duty
cycle.
10’h000-10’h3FF
10’h0
high_cnt1
The output synthesizer divides the PLL output clock by
'high_cnt1 + low_cnt1'. The ratio of high_cnt1 to
'high_cnt1 + low_cnt1' determines the output duty
cycle.
10’h000-10’h3FF
10’h0
low_cnt1
The output synthesizer divides the PLL output clock by
'high_cnt1 + low_cnt1'. The ratio of high_cnt1 to
'high_cnt1 + low_cnt1' determines the output duty
cycle.
10’h000-10’h3FF
10’h0
Parameter
Description
Defined Values
Default
Value