Bt8960EVM Hardware User’s Guide
Bt8960
Interface Descriptions
Bt8960EVM Hardware User’s Guide
10
Conexant
100188B
Conexant Proprietary and Confidential
Status LEDs
In addition to the power LED, two LEDs labeled ERROR and START-UP are included to provide
status to the Bt8960EVM user. They are connected to Port 1 on the 80C32 and are controlled via the
Bt8960EVM software.
Line Card ID
Five signals are provided to the 80C32 to indicate the ID of the line card to the EVM software. They
are connect to Port 1 of the 80C32. See Table 1 for a description of the line card ID values.
Layout Considerations
The Bt8960 line card analog and digital power and ground planes are isolated from each other. The
analog and digital planes are connected at a single point under the Bt8960 device. Voltage bypass
and compensation capacitors are located as close to their associated devices as possible. In addition,
capacitors C5 and C6 are located as close to the Bt8960 device as possible to minimize noise at the
Bt8960 analog inputs.
