Kontron AM4901 - Manual (Page 22)

Introduction AM4901
Page 1 - 6 ID 1022-5813, Rev. 1.0
P R E L I M I N A R Y
Figure 1-1: AM4901 Functional Block Diagram
Hea
lth
Hot
Sw
ap
O
ut
-of-
S
er
vi
ce
I²C Hub 1 to
1
2
MCMC
LP
C2
368
Temp. Se
nse
MCH
To
ngu
e
1
12
V
Payl
oad Power
Ma
g.
RS
-2
32
EEP
IP
MB-
L
[1
..12
]
3.
3V
Mgmt.
Pow
e
r
F
R
U Da
ta
H
ot
Sw
ap Sw
itch
SER
I 2
C
IP
MB-
0
[A
]
IP
MB-
0
[B
]
I 2
C (
C
arr
ie
r F
R
U
)
Et
he
rn
et
/ F
abr
ic
[
A
]
Swit
ch
BC
M539
6
12
+1 LED
s
12 +1
Li
nk
/A
ct
ivi
ty
12x 1000
B
a
se-B
x
1000
B
a
se-B
x
updat
e
Chan
nel
F
ront
R
eset
Sw
itc
h
F
ron
t P
ane
l
XO
VER
In
te
r-MC
H
IP
MB
-L
SER
RxD
/TxD
I 2
C
JT
AG
Debu
g
Con
JT
A
G
Ser
D
e
s
Por
t14
LE
D
DA
TA
Mag
.
Et
he
rne
t
GPIO
Por
t 13
PL
D
PHY PHY
RJ
-4
5
2 LED RJ
-4
5
DC
/D
C an
d
LD
O
MD
C1
/M
DI
O1
JTAG
EN
TTL
LVDS
I 2
C
I 2
C
I 2
C
I 2
C
I 2
C
12
SGMI
I
12
P
or
t1
..12
Ser
D
e
s
GP
IO
JT
AG
RJ-
45
2 LED
I 2
C
Expa
n
. HUB
_
E
N[1:12]
In
di
ca
te
s I
nput
Sour
ce
1 L
E
D