3.0 Pin Descriptions
RC224ATL/224ATLV
EmbeddedModem Family
Table 3-3. RC224ATL/224ATLV 100-Pin PQFP Pin Assignments—Serial (4 of 4)
Pin Number
Signal Label
I/O Type(1)
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
NC
—
AAE
DTRL
NC
DO
DO
—
RXD
RESET
VCC
VCC
NC
DO
IC
(6)
(6)
—
NVRSK
NC
DO
—
—
NC
TXD
NC
DI
—
—
NC
DGND
NC
DGND
—
—
—
NC
NC
NOTE(S):
(1)
I/O Types are described in Figure 7-5, Digital Interface Characteristics and
Figure 7-6, Analog Interface Characteristics.
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 kΩ.
Connect ATL to + 5 VCC, ATLV to + 3 VCC.
(2)
(3)
(4)
(5)
(6)
3-10
Conexant
D224ATLVDSC
CONEXANT [ CONEXANT SYSTEMS, INC ]
