TABLE III Clock Detect and Signal Detect

CD

SD

Stream-Cipher Logic

0

0

Sample Mode

0

1

Sample Mode

1

0

Sample Mode

11

Stream Cipher Initialization

Stream-Cipher Initialization refers to the algorithm employed by the Stream Cipher logic which by

processing the encoded datastream ultimately enters the Hold state allowing for synchronized

descrambling

TLF11885 – 14

FIGURE 14 Typical Schematic for TP-PMD Application

Contact National Semiconductor for

further information relating to PMD

Transceiver availability

10