r6781-12 Conexant Systems, Inc., r6781-12 Datasheet - Page 39

• Manufacturer Part Number: r6781-12
• Description: Embedded Modem Family
• Manufacturer: Conexant Systems, Inc.

EmbeddedModem Family
D224ATLVDSC
Table 3-4. RC224ATL/224ATLV 100-Pin PQFP Pin Assignments—Parallel (3 of 4)
NOTE(S):
(1)
(2)
(3)
(4)
(5)
(6)
I/O Types are described in
Figure 7-6, Analog Interface
MI = Modem Interconnection.
NC = No external connection (may have internal connection, leave pin disconnected
(open)).
AGND is analog ground and DGND is digital ground.
Connect to VCC through 4.7 k .
Connect ATL to + 5 VCC, ATLV to + 3 VCC.
Pin Number
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
Conexant
XTLI
XTLO
NC
DGND
DGND
NC
NC
HD0
HD1
HD2
HD3
NMI
DGND
NC
HD4
HD5
HD6
HD7
RING
NC
HRD
HWT
HCS
NVRCS
HA2
(A/A1)
DGND
Figure 7-5, Digital Interface Characteristics
Characteristics.
Signal Label
IE
OE
DGND
DGND
DIO
DIO
DIO
DIO
(6)
DGND
DIO
DIO
DIO
DIO
DI
DI
DI
DI
DO
DI
DO
DGND
I/O Type
and
—
—
—
—
—
(1)
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