3.0 Pin Descriptions
RC224ATL/224ATLV
EmbeddedModem Family
Table 3-3. RC224ATL/224ATLV 100-Pin PQFP Pin Assignments—Serial (2 of 4)
Pin Number
Signal Label
I/O Type(1)
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
AGCIN
VC
—
—
AGND
NC
AGND
—
—
—
—
—
NC
NC
NC
NC
TLKRELAY
AGND
OHRELAY
NC
OD
AGND
OD
—
—
NC
SLEEPI
RAGCI
AGND
RSTBI
RRSTI
RADCO
TDACI
TRSTI
TSTBI
NC
DI
MI to RAGCO
AGND
MI to RSTBO
MI to RRSTO
MI to RADCI
MI to TDACO
MI to TRSTO
MI to TSTBO
—
—
NC
φ2
DO
(5)
TEST
XTLI
IE
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)
3-8
Conexant
D224ATLVDSC
CONEXANT [ CONEXANT SYSTEMS, INC ]
