SPRUIN7C March 2020 – March 2024 TMS320F280021 , TMS320F280021-Q1 , TMS320F280023 , TMS320F280023-Q1 , TMS320F280023C , TMS320F280025 , TMS320F280025-Q1 , TMS320F280025C , TMS320F280025C-Q1
In dual-pin read/write access (Figure 13-9), nOE and nWE pins determine whether the transaction being performed is a read or a write. In the default polarity state, nOE going low indicates a data read from the device to the host and nWE going low indicates a data write to the device by the host.