Introduction
isoSPI is a proprietary Linear Tech protocol that
Architecture
| Maximum Clock Speed | 1MHz (see p.12 in LTC6820 datasheet) |
|---|---|
| Lines | 2 (twisted pair) |
| Number of Slaves | Limited by the number of transceivers |
Scope Captures
Being able to decode scope captures are pretty useful when debugging.
(Taken from Table 1 in the LTC6820 datasheet)
| Pulse Type | First Level | Second Level | Ending Level |
|---|---|---|---|
| Long +1 | +V_a (150ns) | -V_a (150ns) | 0V |
| Long -1 | |||
| Short +1 | |||
| Short -1 |
(Taken from Table 2 in the LTC6820 datasheet)
| SPI Master Event | Transmitted Pulse |
|---|---|
| CS Rising | Long +1 |
| CS Falling | Long –1 |
| SCK Latching Edge, MOSI = 1 | Short +1 |
| SCK Latching Edge, MOSI = 0 | Short –1 |