Ds1643 Nonvolatile Timekeeping Ram; 82C54 Interval Timer; Table 8: Ds1643 Nonvolatile Timekeeping Ram Registers; Table 9: 82C54 Interval Timer Registers - Performance Computer PT-VME151A User Manual

DS1643 Nonvolatile Timekeeping RAM

Table 8: DS1643 Nonvolatile Timekeeping RAM Registers

ADDRESS
0F000000h-
0F001FF7h
0F001FF8h
0F001FF9h
0F001FFAh
0F001FFBh
0F001FFCh
0F001FFDh
0F001FFEh
0F001FFFh

82C54 Interval Timer

ADDRESS
70000000h
70000001h
70000002h
70000003h
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FUNCTION
Nonvolatile RAM
Control Register
Seconds
Minutes
Hours
Day
Date
Month
Year

Table 9: 82C54 Interval Timer Registers

Extensible Single Board Computer/Controller User's Manual 71
Performance Computer
VALUES
User Definable
-
00-59 msb = 0
00-59
00-23
01-07
01-31
01-12
00-99
FUNCTION
Interval Timer 0 Counter
Interval Timer 1 Counter
Interval Timer 2 Counter
Control Word Register
INIT
-
00
-
-
-
-
-
-