CS7620
4.34 Horizontal Timing Control - Analog Delays
Default = 00h; Read/Write (address 2Dh)
Bit Number
Bit Name
Default
7
6
Resrved
-
-
5
phase_h1
0
4
phase_h0
0
3
rgf_reg1
0
2
rgf_reg0
0
1
rgr_reg1
0
0
rgr_reg0
0
Bit
Mnemonic
Function
7:6
-
Reserved
Phase Shift of H1-H4 Pulses: This register allows for minor shifts in the
phases of H1-H4. This can help to optimize the sampling time of the CCD in-
5
phase_h1
put signal. 1 unit of delay is ~1.5 ns. This should be used for final adjustments
only, with large adjustments done through the selection of the appropriate
clock phases for each edge. All four horizontal clocks shift together when this
register is used.
4
phase_h0
0 - no shift
1 - 1.5 ns shift
2 - 3.0 ns shift
3 - 4.5 ns shift
RG Falling Edge Phase Shift: This register allows for minor shifts in the
3
rgf_reg1
phase of the falling edge of RG. 1 unit of delay is ~1.5 ns.
2
rgf_reg0
0 - no shift
1 - 1.5 ns shift
2 - 3.0 ns shift
3 - 4.5 ns shift
RG Rising Edge Phase Shift: This register allows for minor shifts in the
1
rgr_reg1
phase of the rising edge of RG. 1 unit of delay is ~1.5 ns.
0
rgr_reg0
0 - no shift
1 - 1.5 ns shift
2 - 3.0 ns shift
3 - 4.5 ns shift
52
DS301PP2