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PIC16C715
DS30560A-page 114
Advance Information
1996 Microchip Technology Inc.
TRISB Register............................................................ 14, 25
Two’s Complement .............................................................. 7
U
UV Erasable Devices........................................................... 5
W
W Register
ALU.............................................................................. 7
Wake-up from SLEEP........................................................ 58
Watchdog Timer (WDT)................................... 45, 48, 51, 57
WDT................................................................................... 51
Block Diagram............................................................ 57
Period......................................................................... 57
Programming Considerations .................................... 57
Timeout...................................................................... 51
X
XORLW Instruction ............................................................ 73
XORWF Instruction............................................................ 73
Z
Z bit.................................................................................... 15
Zero bit................................................................................. 7
LIST OF EXAMPLES
Example 3-1: Instruction Pipeline Flow ........................... 10
Example 4-1: Indirect Addressing.................................... 22
Example 5-1: Initializing PORTA ..................................... 23
Example 5-2: Initializing PORTB ..................................... 25
Example 5-3: Read-Modify-Write Instructions
on an I/O Port............................................ 27
Example 6-1: Changing Prescaler (Timer0
Example 6-2: Changing Prescaler (WDT
Example 7-1: Calculating the Minimum Required
Sample Time ............................................. 38
Example 7-2: Doing an A/D Conversion.......................... 40
Example 7-3: 4-bit vs. 8-bit Conversion Times................ 41
Example 8-1: Saving STATUS and W Registers
in RAM....................................................... 56
→
Timer0)......... 33
WDT)......... 33
→
LIST OF FIGURES
Figure 3-1:
Figure 3-2:
Figure 4-1:
PIC16C715 Block Diagram ......................... 8
Clock/Instruction Cycle.............................. 10
PIC16C715 Program Memory Map
and Stack .................................................. 11
PIC16C715 Register File Map................... 12
Status Register (Address 03h, 83h) .......... 15
OPTION Register (Address 81h)............... 16
INTCON Register (Address 0Bh, 8Bh)...... 17
PIE1 Register (Address 8Ch).................... 18
PIR1 Register (Address 0Ch).................... 19
PCON Register (Address 8Eh).................. 20
Loading of PC In Different Situations ........ 21
Direct/Indirect Addressing ......................... 22
Block Diagram of RA3:RA0....................... 23
Block Diagram of RA4/T0CKI Pin.............. 24
Block Diagram of RB3:RB0 Pins............... 25
Block Diagram of RB7:RB4 Pins............... 25
Successive I/O Operation.......................... 27
Timer0 Block Diagram............................... 29
Timer0 Timing: Internal Clock/
No Prescale............................................... 29
Timer0 Timing: Internal Clock/
Prescale 1:2 .............................................. 30
Timer0 Interrupt Timing............................. 30
Timer0 Timing with External Clock............ 31
Block Diagram of the Timer0/
WDT Prescaler.......................................... 32
ADCON0 Register (Address 1Fh) ............. 35
ADCON1 Register (Address 88h) ............. 36
A/D Block Diagram.................................... 37
Analog Input Model ................................... 38
A/D Transfer Function ............................... 42
Flowchart of A/D Operation....................... 43
Configuration Word ................................... 45
Crystal/Ceramic Resonator Operation
(HS, XT or LP OSC Configuration)............ 46
External Clock Input Operation
(HS, XT or LP OSC Configuration)............ 46
External Parallel Resonant Crystal
Oscillator Circuit ........................................ 47
External Series Resonant Crystal
Oscillator Circuit ........................................ 47
RC Oscillator Mode ................................... 47
Simplified Block Diagram of On-chip
Reset Circuit.............................................. 48
Brown-out Situations ................................. 49
Time-out Sequence on Power-up
(MCLR not Tied to V
DD
Figure 4-2:
Figure 4-3:
Figure 4-4:
Figure 4-5:
Figure 4-6:
Figure 4-7:
Figure 4-8:
Figure 4-9:
Figure 4-10:
Figure 5-1:
Figure 5-2:
Figure 5-3:
Figure 5-4:
Figure 5-5:
Figure 6-1:
Figure 6-2:
Figure 6-3:
Figure 6-4:
Figure 6-5:
Figure 6-6:
Figure 7-1:
Figure 7-2:
Figure 7-3:
Figure 7-4:
Figure 7-5:
Figure 7-6:
Figure 8-1:
Figure 8-2:
Figure 8-3:
Figure 8-4:
Figure 8-5:
Figure 8-6:
Figure 8-7:
Figure 8-8:
Figure 8-9:
): Case 1............... 52