Page 47 of 52
15 15. Appendix C: EHS and DHSG API
15.1 EHS Interface
15.1.1 EHS
The EHS connector is compatible with the EA40 standard but is designed so that it may support other standards in
future. The pins are as follow:
Bidirectional IO/SPI DI. Used for SDO in EA40. Connected to pin 8 in DHSG connector.
Input IO/SPI CLK. Used for SCLK in EA40.
Input IO/SPI CS. Used for CS in EA40.
Output IO/SPI DO. Used for SDI in EA40. Connected to pin 1 in DHSG connector.
15.1.2 Phone
Input for audio signal. The pins can be configured using the slider on the button of the base. The table below shows
that in detail.
15.1.3 DHSG
The DHSG connector follows the pinout described in the official DHSG standard [DHSG_SPEC]. Other pin
configurations have been seen and to support these, a special cable is needed. The pins are as follow:
Output IO/SPI DO. Used for Data RX in DHSG. Connected to pin 4 in EHS connector.
The audio signals can be configured using the slider as shown in table below.
The audio signals can be configured using the slider as shown in table below.
The audio signals can be configured using the slider as shown in table below.
The audio signals can be configured using the slider as shown in table below.
Bidirectional IO/SPI DI. Used for Data TX in DHSG. Connected to pin 1 in EHS connector.
Using relays, the audio path can be configured to use either the PHONE connector or pin 3 -6 in DHSG connector.
The audio pins can be configured using the same slider mentioned in PHONE interface:
To Next Page
Loading...
