-
Notifications
You must be signed in to change notification settings - Fork 11
/
MEMO
54 lines (49 loc) · 1.33 KB
/
MEMO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
JESD204B parameters:
--------------------
L: Number of lanes per converter device, 1-8
M: Number of converters per device, 1-256
F: Number of octets per frame, 1, 2, 4-256
S: Number of transmitted samples per converter per frame, 1-32
N: Number of conversion bits per converter, 1-32
N': Number of transmitted bits per sample, 1-32
K: Number of frames per multiframe, 17/F ≤ K ≤ 32 ; 1-32
CS: Number of control bits per conversion sample, 0-3
CF: Number of control words per frame clock period per link, 0-32
HD: High Density user data format,0 or 1
LMFC: Local multiframe clock, (F × K /4) link clock counts
JESD204B parameters relationship:
---------------------------------
JESD204B word size = N’
F = (M x S x N')/(8 x L)
SC: Converter sample clock
FC: Frame clock
LR: Line Rate
LMFC: Local multi-frame clock
FC = SC/S
LMFC = FC/K
LR = (M x S x N' x 10/8 x FC)/L
AD9154 parameters:
------------------
CF always 0 for ADI devices
K = 16 or 32
control bits not supported
M = 4
L = 4 with KC705/L=8 with KCU105
if F = 1, HD must be set to 1
S = 1
F = 2
Character Insertion:
----------------------
if not scrambled:
if dn = dn-1:
if end of multiframe:
dn = A
if end of frame:
dn = F
if scrambled:
if dn = 0x7c:
if end of multiframe:
dn = A
if dn = 0xfc:
if end of frame:
dn = F