ICS1572 Datasheet, PDF (11/19 Pages) Integrated Circuit Systems – User Programmable Differential Output Graphics Clock Generator

BIT(S)
33-38
39
40
41-44
45-48
49-55
56
BIT REF.
M[0]..M[5]
RESERVED
DBLFREQ
A[0]..A[3]
RESERVED
R[0]..R[6]
RESERVED
ICS1572
DESCRIPTION
M counter control bits
Modulus = value +1
Set to zero.
Doubles modulus of dual-modulus prescaler (from 6/7 to 12/14).
Controls A counter. When set to zero, modulus=7. Otherwise,
modulus=7 for “value” underflows of the prescaler, and modulus=6
thereafter until M counter underflows.
Set to zero.
Reference divider modulus control bits
Modulus = value + 1
Set to zero.
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