Specifications

59
TIME OF DAY
The fo11owinQ BASIC program:
SETS UP THE AMO 9S13 TIMER I.C. FOR TIME OF DAY OPERATION.
The initial time and day 1s inserted at the locations marked by a
"." in the program. These values are the decimal equivalents of the
values indicated, in HEX form. For example. in line 90, if the initial
value of the seconds is to be 30. the number used in the program would
be 48. Nine seconds would be a 9 in the program and 43 seconds would
be a 67 in the program.
BASIC:
10
OUT(30)=255
20 OUT(30)=23
30 OUT(28)'255
40 OUT(28)=138
50 OUT(30)=01
60
OUT(28)=57
70 OUT(28)=15
80 OUT(28)' •
90
OUT(28)= •
100 OUT(30)=02
110 OUT(28)=61
120
OUT(28)'00
130
OUT(28)' •
140 OUT(28)= •
150 OUT(30j=03
160 OUT(28)=57
170
OUT(280=00
180
OUT(28)= *
190
OUT(28)= *
200 OUT(30)=67
HEX
"rF
17
FF
8A
01
39
OF
02
3D
00
03
39
00
43
Master Mode Reset
Set
Data Pointer to Master Mode
Register
Set
Master Mode Register to:BCD.
Data Pointer Increment. 8 Bit Bus.
FOUT ON. FOUT flO. FOUT SOURCE F5.
Compare 1 &2 Enabled. TOO Enabled . 10
Set D~ta Pointer to Counter Mode-
Re9i ster 1
Set Counter
Mode to: SOURCE=F5.
ACTIVE HI TC. BCD. COUNT UP
Tenths and Hundreths-Seconds
Tens and Ones-Seconds
Set Data Pointer to Counter Mode
Register 2
Set counter Mode to: SOURCE·TCI.
ACTIVE LO TC. 8CO. COUNT UP
Tens and Ones-Minutes
Tens and Ones-Hours
Set Oa ta Poi nter to Counter Mode
Register 3.
Set Counter Mode to:SOURCE=TC2.
ACTIVE HI TC. BCD. COUNT UP
Tens and Ones-Days
Thousands and Hundreds-Days
Load Counter 1 and 2 with Contents
of Load Registers