pt7a4402b Pericom Technology Inc, pt7a4402b Datasheet - Page 12

• Manufacturer Part Number: pt7a4402b
• Description: T1/e1 System Synchronizer
• Manufacturer: Pericom Technology Inc

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PT0100(12/05)
Table 6. Manual Operation Mode
Figure 6. Diagram of State Change in Manual Mode
L
L
L
L
L
R
e
e
e
e
e
f e
M 2 S
M 2 S
M 2 S
M 2 S
M
e g
e g
e g
e g
e g
r e
0
0
0
0
0
1
2 S
d n
d n
d n
d n
d n
o t
:
Notes:
(xxx): (MS2 MS1 RSEL)
IR: Invalid Reference Signal
i f
: -
: /
I T
u g
N
N
: E
GTi=1
: Phase re-alignment
: Phase continuity maintained without TIE Corrector
: Phase continuity maintained with TIE Corrector
M 1 S
M 1 S
M 1 S
M 1 S
M
e r
I
I
I
t o
I
I
o
Primary
Normal
p n
p n
p n
p n
p n
0
0
0
0
S
1
1
1 S
(000)
h c
6
a v
a t
S1
t u
t u
t u
t u
t u
n a
e t
o f
d i l
s r
C
C
C
C
C
e g
h c
n o
n o
n o
n o
n o
GTi=0
a t
R
R
R
R
R
n a
e t
r t
r t
r t
r t
r t
S
S
S
S
S
e g
X
0
0
0
1
1
E
E
E
E
E
l o
l o
l o
l o
l o
c
L
L
L
L
L
a h
c o
IR
g n
u c
s e
s r
G i T
G i T
G i T
G i T
G
w
o t
X
X
X
X
0
1
i T
Auto-Holdover
h t i
a
d n
T
Primary
Holdover
Primary
(000)
E I
f
S1A
(010)
o r
S1H
C
m
r F
r F
r F
r F
r F
r o
A
e e
e e
e e
e e
e e
e r
0 S
2 S
1 S
1 S
u
R -
R -
R -
R -
R -
/
/
-
t c
o t
r o
n u
n u
n u
n u
n u
H -
r i c
l o
Free-Run
o d
u c
(10X)
e v
S0
. t i
12
s r
N
N
N
N
N
2 S
P (
a t
r o
r o
r o
r o
r o
1 S
1 S
0 S
. e t
R
-
-
/
T
m
m
m
m
m
H
* Movement to Normal State from any state requires a
) I
E I
l a
l a
l a
l a
l a
Auto-Holdover
valid input signal.
Secondary
Secondary
Holdover
(001)
S2A
(011)
S2H
N
N
N
N
N
1 S
1 S
S (
S
S
S
S
S
r o
r o
r o
r o
r o
2 S
a t
a t
a t
a t
a t
2 S
0 S
T1/E1 System Synchronizer
E
-
/
T
T
m
m
m
m
m
H
e t
e t
e t
e t
e t
) C
E I
E I
l a
l a
l a
l a
l a
IR
H
H
H
H
H
PT7A4402B/4402L
1 S
2 S
o
o
o
o
o
P (
1 S
d l
d l
d l
d l
d l
Secondary
1 S
0 S
R
-
/
T
T
Normal
v o
v o
v o
v o
v o
H
(001)
) I
E I
E I
S2
r e
r e
r e
r e
r e
Data Sheet
H
H
H
H
H
1 S
1 S
2 S
o
o
o
o
o
S (
2 S
d l
d l
d l
d l
d l
0 S
E
/
-
T
T
T
v o
v o
v o
v o
v o
H
) C
E I
E I
E I
r e
r e
r e
r e
r e
Ver:1