
iv
Conexant
100723A
9.
BI-LEVEL RESOLUTION CONVERSION.......................................................................................................9-1
9.1 FUNCTIONAL DESCRIPTION ..................................................................................................................9-1
9.2 REGISTER DESCRIPTION.......................................................................................................................9-6
9.3 RESOLUTION CONVERSION PROGRAMMING EXAMPLES...............................................................9-15
10. EXTERNAL PRINT ASIC INTERFACE.........................................................................................................10-1
10.1
INTERFACE BETWEEN THE MFC2000 AND EXTERNAL PRINT ASIC..........................................10-1
11. BIT ROTATION LOGIC..................................................................................................................................11-1
11.1
11.2
11.3
11.4
FUNCTIONAL DESCRIPTION............................................................................................................11-1
BLOCK DIAGRAM...............................................................................................................................11-3
REGISTER DESCRIPTION.................................................................................................................11-6
FIRMWARE OPERATION.................................................................................................................11-10
12. PRINTER AND SCANNER STEPPER MOTOR INTERFACE......................................................................12-1
12.1
12.2
VERTICAL PRINT STEPPER MOTOR INTERFACE .........................................................................12-1
SCANNER STEPPER MOTOR INTERFACE.....................................................................................12-5
13. GENERAL PURPOSE INPUTS/OUTPUTS (GPIO) ......................................................................................13-1
13.1
13.2
13.3
GPIO SIGNALS...................................................................................................................................13-1
GPO/GPI SIGNALS.............................................................................................................................13-5
GPIO CONTROL AND DATA REGISTERS........................................................................................13-6
14. COMPRESSOR AND DECOMPRESSOR.....................................................................................................14-1
14.1
14.2
FUNCTIONAL DESCRIPTION............................................................................................................14-1
REGISTER DESCRIPTION.................................................................................................................14-2
15. SYNCHRONOUS/ASYNCHRONOUS SERIAL INTERFACE (SASIF).........................................................15-1
15.1
15.2
15.3
15.4
FUNCTIONAL DESCRIPTION............................................................................................................15-1
REGISTER DESCRIPTION.................................................................................................................15-3
SASIF TIMING...................................................................................................................................15-12
FIRMWARE OPERATION.................................................................................................................15-16
16. USB INTERFACE ..........................................................................................................................................16-1
16.1
16.2
16.3
FUNCTION DESCRIPTION ................................................................................................................16-1
REGISTER DESCRIPTION.................................................................................................................16-1
FIRMWARE OPERATION.................................................................................................................16-23
17. BI-DIRECTIONAL PARALLEL PERIPHERAL INTERFACE........................................................................17-1
17.1
17.2
17.3
17.4
17.5
17.6
OPERATIONAL MODES.....................................................................................................................17-1
ADDITIONAL FEATURES...................................................................................................................17-2
FUNCTIONAL DESCRIPTION............................................................................................................17-3
REGISTER DESCRIPTION.................................................................................................................17-4
TIMING..............................................................................................................................................17-16
FIRMWARE OPERATION.................................................................................................................17-22