158004.B00 39
PORT BIT FUNCTION
E0h 0 BA14 (For Flash memory bank switching)
E0h 1 BA15 (For Flash memory bank switching)
E0h 2 BA16 (For Flash memory bank switching)
E0h 3 BA17 (For Flash memory bank switching)
E0h 4 BA18 (For Flash memory bank switching)
E0h 5 BA19 (For Flash memory bank switching)
E0h 6 (not used)
E0h 7 BA20 (For Flash memory bank switching)
E4h 0 BA21 (For Flash memory bank switching)
E4h 1 /ENFLASH (Enables access to the Flash memory chips when 0)
E4h 2 (not used)
E4h 3 /CSADC (To CS pin of the A/D converter. Active low.)
E4h 4 /CSEEPROM (To serial EEPROM. Active low.)
E4h 5 SK (Clock to serial EEPROM and A/D Converter.)
E4h 6 SI (Data to serial EEPROM and A/D Converter.)
E4h 7 SO (Data from serial EEPROM and A/D converter.)
E4h 7 * BA22 (For Flash memory bank switching)
* Note - see text for description of this bit.
TABLE 7 - UTILITY REGISTER BIT ALLOCATIONS
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