T9000
Preliminary Data Sheet
November 2000
ISDN Network Termination Node (NTN) Device
3 Block Diagram
Figure 1 shows the architecture of the NTN device.
U-INTERFACE
S/T-INTERFACE
TRANSMISSION SUPERBLOCK
S/T
U
ROM
RAM
DFAC
HDLC
GCI+
GCI+ INTERFACE
80C32
CORE
CLOCK/
RESET
UCI
dc/dc
GPIO
PWM
COMP
24 GPIO PINS
5-6494aF
LEGEND:
dc/dc:
Square wave signal generator with programmable period
COMP: Comparator
DFAC:
GCI+:
GPIO:
HDLC:
JTAG:
PWM:
UCI:
Data flow/activation control
General control interface
General-purpose input/output
High-level datalink controller
Boundary-scan interface
Pulse-width modulator
Microcontroller interface
Figure 1. NTN Block Diagram
6
Lucent Technologies Inc.
AGERE [ AGERE SYSTEMS ]
