Rainbow-electronics DS89C450 Manuale Utente Pagina 46
- Pagina / 48
- Indice
- SEGNALIBRI
- DS89C430/DS89C440/DS89C450 1
- ABSOLUTE MAXIMUM RATINGS 2
- 3 of 48 3
- AC CHARACTERISTICS 4
- Figure 2. Page Mode 1 Timing 8
- Figure 3. Page Mode 2 Timing 8
- Figure 4. Serial Port Timing 10
- PIN DESCRIPTION 12
- PIN DESCRIPTION (continued) 13
- DETAILED DESCRIPTION 14
- Terminology 15
- Compatibility 15
- Performance Overview 15
- Instruction Set Summary 15
- 17 of 48 17
- Table 2. SFR Reset Value 18
- Memory Organization 19
- Register Space 19
- Memory Configuration 20
- Program Memory Access 21
- On-Chip Program Memory 22
- Security Features 22
- ROM Loader 25
- On-Chip MOVX Data Memory 26
- External Memory 27
- RD or WR strobes 28
- MOVX INSTA DATAA A 29
- Table 7. Page Mode Select 30
- Data Data 32
- LSB Add LSB Add LSB Add 32
- DataMSB Add 32
- (PAGES1:PAGES0 = 00) 33
- (PAGES1:PAGES0 = 01) 33
- 35 of 48 35
- Interrupts 36
- Interrupt Priority 37
- Table 12. Interrupt Summary 37
- Timer/Counters 38
- Table 13. Timer Functions 38
- Timed Access 38
- System Clock-Divide Control 39
- SELECTOR 40
- Watchdog Timer 41
- Internal System Reset 41
- External/Hardware Reset 42
- Reset Output 42
- Power-Management Mode 42
- Ring Oscillator 43
- Idle Mode 43
- SELECTOR GUIDE 44
- PIN CONFIGURATIONS 45
- REVISION HISTORY 45
- PACKAGE INFORMATION 46
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