Data Sheet

SDA pin configuration

Offset 0x3C

Type 8-bit

Data

• Bits 0–3: Pin function:

◦ 0: Default (see below)

◦ 1: User I/O

◦ 2: User input

◦ 4: SDA (I²C data line)

◦ 7: Kill switch

• Bits 4–5: reserved, should be 0

• Bit 6: Enable analog readings

• Bit 7: Enable internal pull-up

Default 0

Settings

file

sda_config

Settings

file data

Space-separated list including a subset of pin options ( pullup , analog , and

active_high ) and one pin function: default , user_io , user_input , serial (SDA), or

kill_switch .

Tic

Control

Center

Advanced settings tab, Pin configuration box, SDA

This byte contains most of the configuration of the SDA pin, as described in Section 5.5.

If the pin function is set to “Default”, then the Tic will ignore all of the options set in this byte and just

use default settings. The default settings for SDA depend on the control mode: in an analog control

mode, SDA is configured as a user input with analog readings enabled, while in all other control

modes, SDA is used as the I²C data line with its internal pull-up enabled.

Note that the settings file has all of the SDA configuration options on one line, but in the Tic’s

EEPROM, those settings are stored in multiple places: the SDA pin configuration byte, the switch

polarity map byte, and the kill switch map byte.

6. Setting reference Page 98 of 150