參數(shù)資料
型號(hào)： T8100
英文描述： H.100/H.110 Interface and Time-Slot Interchanger
中文描述： H.100/H.110接口和時(shí)隙交換器
文件頁(yè)數(shù)： 12/92頁(yè)
文件大?。?/td> 1450K
代理商： T8100
10
Lucent Technologies Inc.
Preliminary Data Sheet
August 1998
H.100/H.110 Interface and Time-Slot Interchanger
Ambassador T8100
1 Product Overview
(continued)
1.3 Pin Information
(continued)
Table 7. Pin Descriptions: Other Pins
Symbol
GP[5:0]
Pin
Ball
Type
I/O
Name/Description
66—71
T5, R6, U5, T6, R7, P7
General-Purpose Bidirectional Regis-
ter.
8 mA drive, Schmitt in, 50 k
inter-
nal pull-up.
Output from Selector to Drive DJAT
(for NETREF) or GP Register Bit 6.
8 mA drive, Schmitt in, 50 k
internal
pull-up.
Smoothed Input to NETREF Divider
and Drivers or GP Register Bit 7.
8 mA drive, input, Schmitt in, 50 k
internal pull-up.
Serial Output from Connection Mem-
ory.
8 mA drive, 3-state.
Test Type Select.
0 = JTAG, 1 = forced
output test, internal pulldown.
Reserved, No Connection.
TODJAT/GP6
65
U4
I/O
FROMDJAT/GP7
64
R5
I/O
XCS
183
A8
O
TTS
10
D1
I
(NC)
2, 50, 52, 56,
59, 60, 61, 62,
135, 202, 205,
207
A12, B1, B3, B14, B17,
C12, D5, E2, J2, L3, M17,
N15, N16, P6, R4, R16,
T4, U3
—
1.4 Enhanced Local Stream Addressing
Local stream addressing has 1024 locations. Separate
connection and data memories maintain all necessary
information for local stream interconnections. The
streams may operate at maximum rate on eight physi-
cal inputs and eight physical outputs. Choices for
slower input or output rates allow enabling of additional
physical inputs or outputs for a maximum of 16 pins
each. Data rates are 2.048 Mbits/s, 4.096 Mbits/s, or
8.192 Mbits/s.
In addition to the enhanced serial streaming, the local
memories may be used for 8-line-serial-in/1-byte-paral-
lel-out, 1-byte-parallel-in/8-line-serial-out, or 1-byte-
parallel-in/1-byte-parallel-out options. All three data
rates are supported in the parallel modes. The
addresses for the local memories have been simplified
so that stream and time-slot designations are automati-
cally translated to the appropriate memory address,
regardless of rate or serial/parallel modes.
1.5 Full H.100 Stream Address Support
The T8100 provides access to the full 4096 H.100 bus
slots (32 streams x 128 slots) or any standard subset
(H-MVIPhas a maximum 24 streams x 128 time
slots, for example). The number of stored time-slot
addresses is limited to 256 at any one time, but these
may be updated on the fly. In addition, accesses to and
from the H.100 bus can be directed through the 1024
local stream/time slots, giving a total space of 5120
time slots. Data rates are programmable on each of
the 32 physical streams, selected in groups of four.
The rates are 2.048 Mbits/s, 4.096 Mbits/s, or
8.192 Mbits/s.
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