Rainbow Electronics DS26504 - Manual (Page 8)

DS26504 T1/E1/J1/64KCC BITS Element
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1.4 Framer/Formatter
§ Fully independent transmit and receive functionality
§ Full receive and transmit path transparency
§ T1 framing formats include D4 and ESF
§ Detailed alarm and status reporting with optional interrupt support
§ RCL, RLOS, and RAIS alarms interrupt on change of state
§ Japanese J1 support includes:
- Ability to calculate and check CRC6 according to the Japanese standard
- Ability to generate yellow alarm according to the Japanese standard
1.5 Test and Diagnostics
§ Remote and local loopback
1.6 Control Port
§ 8-bit parallel or serial control port
§ Multiplexed or nonmultiplexed buses
§ Intel or Motorola formats
§ Supports polled or interrupt-driven environments
§ Software access to device ID and silicon revision
§ Software-reset supported
§ Automatic clear on power-up
§ Flexible register space resets
§ Hardware reset pin