SCPS289B September 2024 – August 2026 TPLD1202
PRODUCTION DATA
In an unprogrammed TPLD1202 device, the Interface Select pin (IO3) is sampled at device power up to determine the interface the TPLD boots up with after tSU (max).
When the pin is tied to GND (logic low) or left floating, the TPLD1202 is configured with I2C interface with the first four bits of the target address determined by the respective HW Addr IO and the next three bits default to 001b, or ADDR = [A6][A5][A4][A3][0][0][1].
When the pin is tied to VCC (logic high), the TPLD1202 is configured with SPI.
In a programmed device (one in which the OTP has been burned), this setting is overwritten by the selection stored in the OTP memory.
|
I2C_EN |
SPI_EN |
Interface enabled |
|---|---|---|
|
0 |
0 |
Device is unprogrammed (blank) |
|
0 |
1 |
SPI |
|
1 |
0 |
I2C |
|
1 |
1 |
Neither I2C nor SPI, pins are GPIOs |