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EB3486-TN
System Timers
Interval Timer 1
Interval Timer 2
Channel 0
System Timer (IRQ0)
Fail-Safe Timer
(NMI Interrupt)
Channel 1
Refresh Request
Generator (15
u
s Rate
Generator Period Signal)
Channel 2
Tone Generation for
CPU Speed Control
Speaker
Real-Time Clock
Address
Function
00
Seconds
01
Second Alarm
02
Minutes
03
Minute Alarm
04
Hours
05
Hour Alarm
06
Day of Week
07
Date of Month
08
Month
09
Year
0A
Register A
0B
Register B
0C
Register C
0D
Register D
Appendix E
u
E-4