Sonic Alert msm80154s Clock Radio User Manual


 
MSM80C154S/83C154S/85C154HVS
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5.11 Port Data Manipulating Instructions
The MSM80C154S/MSM83C154S port operation instructions for ports 0, 1, 2, and 3 are
divided into two groups-one where external signals applied to the port pin are used according
to the instruction to be used, and the other where port latch data uneffected by the external
signals is used. Instructions which use port latch data are listed below.
INC data address
DEC data address
ORL data address, # data
ANL data address, # data
XRL data address, # data
ORL data address, A
ANL data address, A
XRL data address, A
CPL bit address
JBC bit address, code address
DJNZ data address, code address
PUSH data address