SN8P1800
8-bit micro-controller build-in 12-bit ADC + 72 dots LCD driver
Y, Z REGISTERS .................................................................................................................... 29
X REGISTERS ........................................................................................................................ 30
R REGISTERS ........................................................................................................................ 30
PROGRAM FLAG ....................................................................................................................... 31
CARRY FLAG ......................................................................................................................... 31
DECIMAL CARRY FLAG......................................................................................................... 31
ZERO FLAG ............................................................................................................................ 31
ACCUMULATOR ........................................................................................................................ 32
STACK OPERATIONS................................................................................................................ 33
OVERVIEW ............................................................................................................................. 33
STACK REGISTERS............................................................................................................... 34
STACK OPERATION EXAMPLE............................................................................................. 35
PROGRAM COUNTER............................................................................................................... 36
ONE ADDRESS SKIPPING .................................................................................................... 37
MULTI-ADDRESS JUMPING .................................................................................................. 38
4
5
6
ADDRESSING MODE...................................................................................................... 39
OVERVIEW................................................................................................................................. 39
IMMEDIATE ADDRESSING MODE ........................................................................................ 39
DIRECTLY ADDRESSING MODE .......................................................................................... 39
INDIRECTLY ADDRESSING MODE....................................................................................... 39
TO ACCESS DATA in RAM BANK 0....................................................................................... 40
TO ACCESS DATA in RAM BANK 1....................................................................................... 40
TO ACCESS DATA in RAM BANK 15 (LCD RAM) ................................................................. 40
SYSTEM REGISTER ....................................................................................................... 41
OVERVIEW................................................................................................................................. 41
SYSTEM REGISTER ARRANGEMENT (BANK 0) ..................................................................... 41
BYTES of SYSTEM REGISTER.............................................................................................. 41
BITS of SYSTEM REGISTER ................................................................................................. 42
POWER ON RESET ........................................................................................................ 44
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SONiX TECHNOLOGY CO., LTD
Revision 1.94
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