
Data Sheet
May 2001
Ambassador
T8110 PCI-Based H.100/H.110 Switch
and Packet Payload Engine
1 Introduction
The T8110 is Agere Systems Inc.’s newest addition
to the
Ambassador
series of computer telephony
integrated circuits. This device not only has the capa-
bilities of previous members of the
Ambassador
series but also extends them by providing a flexible
interface for switching packet payloads between a
local PCI bus and the H.100/H.110 buses. Packets
may also be switched between the local PCI bus and
local TDM streams. This part is intended to work with
a coprocessor for providing header, framing, and
checksum generation. Since the T8110 operates
purely on payloads, multiple protocols such as IP,
ATM, and A-Bis can therefore be supported simulta-
neously. To reduce system integration costs, support
for non-PCI devices is provided through a minibridge.
1.1 Features
n
4,096-connection unified switch
n
Packet payload engine supports up to 512 virtual
channels
n
Full H.100/H.110 support (32 data lines, all clock
modes)
n
32 local I/O lines (2, 4, 8, or 16 Mbits/s)
n
PCI interface: combined master/slave with burst
n
Microprocessor interface:
Motorola*/Intel
modes
n
Minibridge with programmable chip selects
n
Interrupt controller with external inputs
n
Eight independent general-purpose I/O lines
n
Eight independently programmed framing signals
n
Four local clocks
n
T1/E1 rate adaptation
n
Two clock-fallback modes
n
Stratum 4/4E and AT&T 62411 MTIE compliant
n
Incorporates 38 H.100 and 34 H.110 termination
resistors
n
Subrate switching of 4 bits, 2 bits, or 1 bit
n
Backward compatible to all T810x devices
n
JTAG/boundary-scan testing support
n
BSDL files available
n
Assists H.110 hot swap
n
Single 3.3 V supply with 5 V tolerant inputs and
TTL compatible outputs
n
272 PBGA package
n
Evaluation boards available, PCI and CompactPCI
Hot Swap
5-8921F
Figure 1. Basic Application of the T8110 as a CT
Switch and CT-IP Payload Processor
F
AGERE
T8110
COPROCESSOR
ETHERNET
MAC/PHY
MEMORY
PCI-PCI
TRUNKS
STREAMS
BRIDGE
I/F
S
&
P
10/100
H.100 BUS
LOCAL PCI BUS
HOST PCI BUS
P
P
P
* Motorolais a registered trademark of Motorola, Inc.
Intel
is a registered trademark of Intel Corporation.
CompactPCIis a registered trademark of the PCI Industrial Computer Manufacturers Group.