DS26303G-120 MAXIM [Maxim Integrated Products], DS26303G-120 Datasheet - Page 69

• Manufacturer Part Number: DS26303G-120
• Description: 3.3V, E1/T1/J1, Short-Haul, Octal Line Interface Unit
• Manufacturer: MAXIM [Maxim Integrated Products]

DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit
are all 0s. When a new pattern is loaded, the pattern generator is loaded with a seed/pattern value before pattern
n
generation starts. The seed/pattern value is programmable (0 – 2
– 1).
6.9.3.1
Transmit Error Insertion
Error insertion inserts errors into the outgoing pattern data stream. Errors are inserted one at a time or at a rate of
n
one out of every 10
bits. The value of n is programmable (1 to 7 or off). Single bit-error insertion can be initiated
from the microprocessor interface, or by the manual error-insertion input (TMEI). The method of single error
insertion is programmable (register or input). If pattern inversion is enabled, the data stream is inverted before the
overhead/stuff bits are inserted. Pattern inversion is programmable (on or off).
6.10 Special Test Functions
This section is used for designer notes. Any special features or test functions that are for internal use or possible
future features that may be needed should be documented here.
6.10.1 Metal Options
The DS26303 has a metal option to allow for pins D0 to D7 to be metal revised. The metal revision adds VDDIO/2
pullup and pulldown to pins D0 to D7. This has been added in case compatibility in hardware mode needs to match
the LXT384 part.
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