Rainbow-electronics DS1993 Manual de usuario Pagina 22
- Pagina / 23
- Tabla de contenidos
- MARCADORES
- DS1992/DS1993 1
- 1kbit/4kbit Memory iButton 1
- EXAMPLES OF ACCESSORIES 2
- OPERATION 2
- DS199X BLOCK DIAGRAM Figure 1 3
- PARASITE POWER 4
- 64-BIT LASERED ROM 4
- 64-BIT LASERED ROM Figure 2 4
- 1-WIRE CRC CODE Figure 3 4
- DS1994 MEMORY MAP Figure 4a 5
- DS1993 MEMORY MAP Figure 4b 6
- DS1992 MEMORY MAP Figure 4c 6
- TIMEKEEPING (DS1994) 7
- Real-Time Clock 7
- Interval Timer 7
- Cycle Counter 7
- Alarm Registers 8
- Status Register 8
- Control Register 9
- MEMORY FUNCTION COMMANDS 10
- ADDRESS REGISTERS Figure 5 10
- Read Scratchpad Command [AAh] 10
- Copy Scratchpad [55h] 11
- Read Memory [F0h] 11
- 12 of 23 102199 12
- MEMORY FUNCTION EXAMPLES 13
- WRITE PROTECT CHART Figure 7 14
- 1-WIRE BUS SYSTEM 14
- HARDWARE CONFIGURATION 14
- 16 of 23 102199 16
- Skip ROM [CCh] 17
- Search ROM [F0h] 17
- 1–WIRE SIGNALING 17
- READ/WRITE TIME SLOTS 17
- Write-One Time Slot 18
- Write-Zero Time Slot 19
- Read-Data Time Slot 19
- Interrupts (DS1994) 19
- TYPE 1 INTERRUPT Figure 12 20
- TYPE 2 INTERRUPT Figure14 21
- = external pull–up voltage 23
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