MCP2221A Datasheet, PDF (25/80 Pages) Microchip Technology – USB 2.0 to I2C/UART Protocol Converter with GPIO

MCP2221A
TABLE 3-2: RESPONSE 1 STRUCTURE (CONTINUED)
Byte
Index
Function Description
23 SDA line value –
as read from the pin
24 Interrupt edge detector state
25 I²C Read pending value
26-45
46
47
48
49
50-55
Don’t care
MCP2221A Hardware Revision
Major (‘A’)
MCP2221A Hardware Revision
Minor (‘6’)
MCP2221A Firmware Revision
Major (‘1’)
MCP2221A Firmware Revision
Minor (‘1’)
ADC Data (16-bit) values.
56-63 Don’t care
Value
Effect
0 or 1
0, 1 or 2
Any value
This field is used by the USB host to know if the
MCP2221A still has to read from a slave device.
Any value
3 x (16-bit) little-endian ADC channel values (CH0 LSB,
CH0 MSB, CH1 LSB, CH1 MSB, CH2 LSB, CH2 MSB).
 2016 Microchip Technology Inc.
DS20005565A-page 25