
28
Agere Systems Inc.
TMXF28155 Supermapper
155/51 Mbits/s SONET/SDH x28/x21 DS1/E1
Data Sheet
June 2002
3 Pin Information
(continued)
Pin
Symbol
Type
—
I/O
I/O
Description
R23, P25,
N25, M23,
M24, L24,
K24, J26,
H25, G23,
G24, F24,
E24, D24,
C24, B25,
C23, C22,
C21, C20,
D20, B19,
A18, C17,
C16, C15,
D15, B14
R24
LINETXCLK[28:1]
Line Transmit Clock [28:1].
Configurable outputs from
the internal cross connect. Can be used as the clock sig-
nals for LINETXDATA[28:1] in DS1, E1, and DS2 modes.
LINETXCLK29
—
I/O
Line Transmit Clock 29.
Configurable output to the inter-
nal cross connect for the protection or timing reference
channel. Also used as the transmit global system clock
input for CHI (2.048 MHz, 4.096 MHz, 8.192 MHz, or
16.384 MHz), PSB (19.44 MHz), and NSMI (51.84 MHz)
modes.
Line Transmit Synchronous [28:1].
Configurable inputs/
outputs to the internal cross connect. An output when
used as the negative rail of a DS1 or E1 output port oper-
ating in dual-rail mode. In CHI mode, these pins may be
used as output TDM highways. In PSB mode, bits 16:1
are used for the transmit data bus, and bits 28:17 are not
used. These pins may also be used as DS2 I/O to the
M12 block as follows: 7:1—Tx data out. 14:8—Tx clock in.
21:16—Rx data in. 28:22—Rx clock in.
P24, P23,
N26, M25,
L23, K23, J23,
J24, H26,
G25, F23,
E25, D25,
C25, F22,
A24, A23,
D22, B21,
A20, C19,
D19, B18,
B17, B16,
A15, C14,
D14
R26
LINETXSYNC[28:1]
—
I/O
LINETXSYNC29
—
I/O
Line Transmit Synchronous 29.
Configurable input/out-
put to the internal cross connect. An output when used as
the negative rail of a DS1 or E1 output port operating in
dual-rail mode. In CHI and PSB modes, it is used as the
transmit system frame synchronization input. In NSMI
mode, it is the transmit system frame sync output.
NSMI Receive Enable.
Receive data enable for NSMI
mode.
NMSI Transmit Enable.
Transmit data enable for NSMI
mode.
AB19
RXDATAEN
—
O
W22
TXDATAEN
—
O
Table 12. Multifunction System Interface Transmit Path Direction
(continued)