FM336Plus
V.34/Group 3 High Performance Fax Modem Family
Table 3. Signal Descriptions
Pin
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
Notes:
1.
2.
3.
Signal Label
RESERVED
RS2
RS3
RS4
/CS
/WR
/RD
/RDCLK
/RLSD
TDCLK
TXD
/CTS
VDD1
RESERVED
RESERVED
VSS
NC
/RESET
SR4OUT
NC
SR4IN
CLK_OUT
EYESYNC
EYECLK
MAVSS
MAVDD
SPKR
TXA2
TXA1
VREF
VC
RIN
MAVSS
/POR
RESERVED
RESERVED
/TALK
VDD
RESERVED
RESERVED
NC
M_CNTRL_SIN
M_CLKIN
M_TXSIN
M_SCK
M_RXOUT
M_STROBE
RESERVED
OH
VDD
I/O Type
—
IA
IA
IA
IA
IA
IA
OA
OA
OA
IA
OA
PWR
—
—
GND
—
OA
OA
—
IA
OA
OA
OA
GND
PWR
O(DF)
O(DD)
O(DD)
MI
MI
I(DA)
AGND
IA
—
—
O(DD)
PWR
—
—
—
IA
IA
IA
IA
IA
IA
—
O(DD)
PWR
Interface
—
HOST Interface
HOST Interface
HOST Interface
HOST Interface
HOST Interface
HOST Interface
DTE Serial Interface
DTE Serial Interface
DTE Serial Interface
DTE Serial Interface
DTE Serial Interface
—
—
—
—
NC
Modem Interconnect
Modem Interconnect
NC
Modem Interconnect
Modem Interconnect
Diagnostic Signal
Diagnostic Signal
—
—
Telephone Line Interface
Telephone Line Interface
Telephone Line Interface
Modem Interconnect
Modem Interconnect
Telephone Line Interface
—
Modem Interconnect
—
—
Telephone Line Interface
—
—
—
NC
Modem Interconnect
Modem Interconnect
Modem Interconnect
Modem Interconnect
Modem Interconnect
Modem Interconnect
—
Telephone Line Interface
—
I/O types:
MI = Modem interconnect
IA, IB = Digital input
OA, OB = Digital output
I(DA) = Analog input
O(DD), O(DF) = Analog output
NC = No external connection required
RESERVED = No external connection allowed
Interface Legend:
HOST = Modem Control Unit (Host)
DTE = Data Terminal Equipment
Pin
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Signal Label
RESERVED
VSUB
VSS
NC
NC
SLEEP
VDD1
RESERVED
RESERVED
NC
SR1IO
VCORE
VDD1
XTCLK
VSS
RESERVED
RXD
/DTR
VDD1
IA_SLEEP
VGG
YCLK
XCLK
EYEXY
/DSR
/RI
RINGD
/RTS
IRQ
VSS
GPO0
RESERVED
RESERVED
VDD1
XTALI/CLKIN
XTALO
D0
D1
D2
D3
D4
VDD1
D5
D6
D7
RS0
RS1
PLL_VDD
VSS
PLL_GND
I/O Type
—
GND
GND
—
—
MI
PWR
—
—
—
MI
PWR
PWR
IA
GND
—
OA
IA
PWR
MI
PWR
OA
OA
OA
OA
OA
IA
IA
OA
GND
MI
—
—
PWR
I
O
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
PWR
IA/OB
IA/OB
IA/OB
IA/OB
IA/OB
PWR
GND
GND
Interface
—
—
—
NC
NC
Modem Interconnect
—
—
—
NC
Modem Interconnect
—
—
DTE Serial Interface
—
—
DTE Serial Interface
DTE Serial Interface
—
Modem Interconnect
—
Overhead Signal
Overhead Signal
Diagnostic Signal
DTE Serial Interface
Telephone Line Interface
Telephone Line Interface
DTE Serial Interface
HOST Interface
—
Modem Interconnect
—
—
—
Overhead Signal
Overhead Signal
HOST Interface
HOST Interface
HOST Interface
HOST Interface
HOST Interface
—
HOST Interface
HOST Interface
HOST Interface
HOST Interface
HOST Interface
—
—
—
10
Conexant
101361A