DLPU078A july 2019 – may 2023 DLP230NP , DLPC3436
Table 3-131 describes the return parameters.
Parameter Bytes | Description |
---|---|
Byte 1 | DMD interface status |
Byte 2 | LED status |
Byte 3 | Internal interrupt status |
Byte 4 | Misc. status |
All system status error bits are cleared when the read system status is read.
MSB | Byte 1 – DMD Interface Status | LSB | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
b(7:3) | Reserved |
b(2) | DMD training error:
|
b(1) | DMD interface error:
|
b(0) | DMD device error:
|
The system sets the DMD device error for the following conditions:
The system sets the DMD interface error when there are power management setup conflicts on this interface.
The system sets the DMD training error when the training algorithm cannot find a data eye that meets the specified requirements. For controller pins selected for training, DMD training will fail if less than 20 out of 50 continuous response values pass.
MSB | Byte 2 – LED Status | LSB | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
b(7) | Reserved |
b(6) | LED no connection error:
|
b(5:3) | Reserved |
b(2) | Blue LED state:
|
b(1) | Green LED state:
|
b(0) | Red LED state:
|
MSB | Byte 3 – Internal Interrupt Status | LSB | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
b(7:3) | Reserved |
b(2) | DC Power Low Voltage:
|
b(1) | Sequence error:
|
b(0) | Sequence abort error:
|
MSB | Byte 4 – Misc. Status | LSB | |||||
---|---|---|---|---|---|---|---|
b7 | b6 | b5 | b4 | b3 | b2 | b1 | b0 |
b(7:6) | Reserved |
b(5) | Watchdog timer timeout:
|
b(4) | Product configuration error:
|
b(3) | Leader versus follower operation:
|
b(2) | Single versus dual controller configuration:
|
b(1:0) | Reserved |
The system sets the product configuration error bit if it determines that some piece of the product configuration is not correct. Some examples are:
The system sets the watchdog timer timeout bit if the system has been reset due to a watchdog timer timeout. The system sets the input frame rate error if the input frame rate is not supported. The system sets the input source resolution error if the input resolution is not supported.