PIC17C752-08SLASHP datasheet(312/320 Pages) MICROCHIP

312 / 320 page

PIC17C75X

DS30264A-page 312

Preliminary

List of Equations and Examples

Example 3-1: Signed Math.................................................. 9

Example 4-1: Instruction Pipeline Flow ............................. 19

Example 6-1: Saving STATUS and WREG in RAM

(Simple) ...................................................... 37

Example 6-2: Saving STATUS and WREG in RAM

(Nested) ...................................................... 38

Example 7-1: Indirect Addressing ..................................... 51

Example 8-1: Table Write ................................................. 58

Example 8-2: Table Read ................................................. 60

Example 9-1: 8 x 8 Unsigned Multiply Routine ................. 61

Example 9-2: 8 x 8 Signed Multiply Routine ..................... 61

Equation 9-1: 16 x 16 Unsigned Multiplication Algorithm .. 62

Example 9-3: 16 x 16 Unsigned Multiply Routine ............. 62

Equation 9-2: 16 x 16 Signed Multiplication Algorithm ...... 63

Example 9-4: 16 x 16 Signed Multiply Routine ................. 63

Example 10-1: Initializing PORTA....................................... 66

Example 10-2: Initializing PORTB....................................... 69

Example 10-3: Initializing PORTC ...................................... 72

Example 10-4: Initializing PORTD ...................................... 74

Example 10-5: Initializing PORTE....................................... 76

Example 10-6: Initializing PORTF ....................................... 78

Example 10-7: Initializing PORTG ...................................... 80

Example 10-8: Read Modify Write Instructions on an

I/O Port ....................................................... 83

Example 12-1: 16-Bit Read ................................................. 89

Example 12-2: 16-Bit Write ................................................. 89

Example 13-1: Sequence to Read Capture Registers ...... 103

Example 13-2: Writing to TMR3 ........................................ 104

Example 13-3: Reading from TMR3 ................................. 104

Example 14-1: Calculating Baud Rate Error ..................... 110

Example 15-1: Loading the SSPBUF (SSPSR) Register.. 127

Equation 16-1: A/D Minimum Charging Time

(For CHOLD) .............................................. 170

Example 16-1: Calculating the Minimum Required

Acquisition Time ....................................... 171

Example 16-2: A/D Conversion......................................... 172

List of Figures

Figure 3-1:

PIC17C75X Block Diagram ........................ 10

Figure 4-1:

Oscillator / Resonator Start-up

Characteristics............................................ 15

Figure 4-2:

Crystal or Ceramic Resonator Operation

(XT or LF OSC Configuration) .................... 16

Figure 4-3:

Crystal Operation, Overtone Crystals

(XT OSC Configuration) ............................. 16

Figure 4-4:

External Clock Input Operation (EC OSC

Configuration) ............................................. 17

Figure 4-5:

External Parallel Resonant Crystal

Oscillator Circuit ......................................... 17

Figure 4-6:

External Series Resonant Crystal

Oscillator Circuit ......................................... 17

Figure 4-7:

RC Oscillator Mode .................................... 18

Figure 4-8:

Clock/Instruction Cycle ............................... 19

Figure 5-1:

Simplified Block Diagram of On-chip

Reset Circuit ............................................... 21

Figure 5-2:

Using On-Chip POR ................................... 22

Figure 5-3:

External Power-On Reset Circuit

(For Slow VDD Power-Up) .......................... 22

Figure 5-4:

Oscillator Start-Up Time ............................. 22

Figure 5-5:

Time-Out Sequence on Power-Up

(MCLR Tied to VDD) ................................... 24

Figure 5-6:

Time-Out Sequence on Power-Up

(MCLR NOT Tied to VDD)........................... 24

Figure 5-7:

Slow Rise Time (MCLR Tied to VDD) ......... 24

Figure 5-8:

External Brown-out Protection Circuit 1 ..... 28

Figure 5-9:

External Brown-out Protection Circuit 2 ..... 28

Figure 5-10:

Brown-out Situations .................................. 28

Figure 6-1:

Interrupt Logic ............................................ 29

Figure 6-2:

INTSTA Register (Address: 07h,

Unbanked) .................................................. 30

Figure 6-3:

PIE1 Register (Address: 17h, Bank 1) ....... 31

Figure 6-4:

PIE2 Register (Address: 11h, Bank 4) ....... 32

Figure 6-5:

PIR1 Register (Address: 16h, Bank 1) ....... 33

Figure 6-6:

PIR2 Register (Address: 10h, Bank 4) ....... 34

Figure 6-7:

INT Pin / T0CKI Pin Interrupt Timing .......... 36

Figure 7-1:

Program Memory Map and Stack............... 39

Figure 7-2:

Memory Map in Different Modes ................ 40

Figure 7-3:

External Program Memory Access

Waveforms ................................................. 41

Figure 7-4:

Typical External Program Memory

Connection Diagram................................... 41

Figure 7-5:

PIC17C75X Register File Map ................... 43

Figure 7-6:

ALUSTA Register (Address: 04h,

Unbanked) .................................................. 47

Figure 7-7:

CPUSTA Register (Address: 06h,

Unbanked) .................................................. 48

Figure 7-8:

T0STA Register (Address: 05h,

Unbanked) .................................................. 49

Figure 7-9:

Indirect Addressing..................................... 50

Figure 7-10:

Program Counter Operation ....................... 52

Figure 7-11:

Program Counter using The CALL and

GOTO

Instructions ....................................... 52

Figure 7-12:

BSR Operation ........................................... 53

Figure 8-1:

TLWT

Instruction Operation ........................ 55

Figure 8-2:

TABLWT

Instruction Operation .................... 55

Figure 8-3:

TLRD

Instruction Operation ........................ 56

Figure 8-4:

TABLRD

Instruction Operation .................... 56

Figure 8-5:

TABLWT

Write Timing (External Memory)... 58

Figure 8-6:

Consecutive TABLWT Write Timing

(External Memory) ...................................... 59

Figure 8-7:

TABLRD

Timing........................................... 60

Figure 8-8:

TABLRD

Timing (Consecutive TABLRD

Instructions) ................................................ 60

PIC17C752-08/P Datasheet(PDF) 312 Page - Microchip Technology

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