HP (Hewlett-Packard) E1432A Graphics Tablet User Manual


 
Data Ready: A one (1) indicates that there is at least one word (32 bits)
of data available in the Send Data register. A zero (0) indicates that there
is not valid data in the Send Data register.
ST Done: A one (1) indicates that the internal DSP has competed and
passed its self test.
Loaded: A one (1) indicates that the internal DSP has successfully booted
and has loaded a valid model code.
Done: A zero (0) indicates that the on-card microprocessor has not
finished processing the last command and the Err* bit is not valid. This bit
is set and cleared by the DSP.
Err*: A zero (0) indicates that an error has occurred in communicating
with the DSP (for example: invalid parameters). This bit is set and cleared
by the DSP.
Ready: The meaning of this depends on the state of the Passed bit. While
Passed is false, a one(1) indicates that the device is in the Config Reg Init
state and the Model Code bits of the Device Type register are not valid,
while a zero (0) indicates that the device is in either the self test or failed
state. When Passed is true, a one (1) indicates that the DSP has finished
its initialization and is ready for normal operation, while a zero (0) indicates
that the device is in the passed state.
Passed: A zero (0) indicates that the device is in either the Hard Reset,
Soft Reset, Config Reg Init, Failed, or Init Failed state. A one (1) indicates
that the device is in the passed state.
HW OK: A one (1) indicates that all the on-card FPGAs have successfully
be initialized.
Q Resp Ready (Query Response Ready): A one (1) indicates that the
Query Response Register is loaded and ready to be read. It is set by the
DSP and cleared in hardware by a write to the Command Register.
Cmd Ready: A one (1) indicates that the command register and parameter
register are available for writing. It is set by the DSP microprocessor and
cleared in hardware by a write to the Command Register. This bit, when
zero (0) additionally indicates that the Done bit is not valid.
HP E1432A User's Guide
Register Definitions
A-6