Advance Information
MC14LC5540 ADPCM Codec Evaluation Kit

The MC145537EVK is the evaluation platform for the MC14LC5540 ADPCM Codec. This board provides the clock generator circuitry and microcontroller interface to facilitate the evaluation of the MC14LC5540.

MC145537EVK Hardware Features
• Supports MC14LC5540 + 5 V or + 3 V Operation
• Handset Interface/Handset Included
• Easy Access to All Analog and Digital Data, Clock, and Enable Signals
• EIA–232–D/ V.28 Terminal Control
• Analog–to–Digital (64 kbps PCM; 32, 24, or 16 kbps ADPCM) Path
• Digital– (64 kbps PCM; 32, 24, or 16 kbps ADPCM) to–Analog Path
• Supports Hardware Loopbacks
   Analog–to–Analog
   Digital–to–Digital
• Ability to Connect Two MC145537EVKs Back–to–Back
• Ability to Connect MC145537EVK and MC145536EVK Back–to–Back for + 5 V Operation Only

MC145537EVK Software Features
• MC68HC705C8 Resident Monitor
• Stand Alone or Terminal Operation
• Device Driver for Serial Control Port Interface
• Ability to Read/Write SCP Registers in MC14LC5540
• Registers Can Be Individually Displayed and Modified
• Help Menu