PIC17C42A-25/P Microchip Technology, PIC17C42A-25/P Datasheet - Page 231

• Manufacturer Part Number: PIC17C42A-25/P
• Description: IC MCU OTP 2KX16 PWM 40DIP
• Manufacturer: Microchip Technology
• Series: PIC® 17Cr

Specifications of PIC17C42A-25/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 33
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: OTP
• Ram Size: 232 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Processor Series: PIC17C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 232 B
• Interface Type: SCI, USART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 33
• Number Of Timers: 8
• Operating Supply Voltage: 2.5 V to 6 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: Through Hole
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: 0 C
• For Use With: DVA17XP401 - DEVICE ADAPTER FOR PIC17C42AAC174001 - MODULE SKT PROMATEII 40DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

WDT ........................................................................... 99, 103
WDTPS0 ............................................................................ 99
WDTPS1 ............................................................................ 99
WREG ................................................................................ 34
X
XORLW ............................................................................ 141
XORWF ............................................................................ 141
Z
Z ..................................................................................... 9, 36
Zero (Z) ................................................................................ 9
1996 Microchip Technology Inc.
Clearing the WDT .................................................... 103
Normal Timer ........................................................... 103
Period ....................................................................... 103
Programming Considerations .................................. 103
LIST OF EXAMPLES
Example 3-1: Signed Math ..................................................9
Example 3-2: Instruction Pipeline Flow .............................14
Example 5-1: Saving STATUS and WREG in RAM ..........27
Example 6-1: Indirect Addressing......................................40
Example 7-1: Table Write ..................................................46
Example 7-2: Table Read..................................................48
Example 8-1: 8 x 8 Multiply Routine ..................................49
Example 8-2: 8 x 8 Signed Multiply Routine......................49
Example 8-3: 16 x 16 Multiply Routine ..............................50
Example 8-4: 16 x 16 Signed Multiply Routine..................51
Example 9-1: Initializing PORTB .......................................57
Example 9-2: Initializing PORTC .......................................58
Example 9-3: Initializing PORTD .......................................60
Example 9-4: Initializing PORTE .......................................62
Example 9-5: Read Modify Write Instructions on an
Example 11-1: 16-Bit Read .................................................69
Example 11-2: 16-Bit Write..................................................69
Example 12-1: Sequence to Read Capture Registers.........78
Example 12-2: Writing to TMR3 ..........................................80
Example 12-3: Reading from TMR3 ....................................80
Example 13-1: Calculating Baud Rate Error........................86
Example F-1: PIC17C42 to Sleep....................................223
LIST OF FIGURES
Figure 3-1:
Figure 3-2:
Figure 3-3:
Figure 4-1:
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 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 6-7:
Figure 6-8:
Figure 6-9:
Figure 6-10:
Figure 6-11:
I/O Port ........................................................64
PIC17C42 Block Diagram ...........................10
PIC17CR42/42A/43/R43/44 Block
Diagram.......................................................11
Clock/Instruction Cycle................................14
Simplified Block Diagram of On-chip
Reset Circuit................................................15
Time-Out Sequence on Power-Up
(MCLR Tied to V
Time-Out Sequence on Power-Up
(MCLR NOT Tied to V
Slow Rise Time (MCLR Tied to V
Oscillator Start-Up Time ..............................18
Using On-Chip POR ....................................18
Brown-out Protection Circuit 1.....................18
PIC17C42 External Power-On Reset
Circuit (For Slow V
Brown-out Protection Circuit 2.....................18
Interrupt Logic .............................................21
INTSTA Register (Address: 07h,
Unbanked)...................................................22
PIE Register (Address: 17h, Bank 1) ..........23
PIR Register (Address: 16h, Bank 1) ..........24
INT Pin / T0CKI Pin Interrupt Timing...........26
Program Memory Map and Stack................29
Memory Map in Different Modes .................30
External Program Memory Access
Waveforms ..................................................31
Typical External Program Memory
Connection Diagram....................................31
PIC17C42 Register File Map.......................33
PIC17CR42/42A/43/R43/44 Register
File Map.......................................................33
ALUSTA Register (Address: 04h,
Unbanked)...................................................36
CPUSTA Register (Address: 06h,
Unbanked)...................................................37
T0STA Register (Address: 05h,
Unbanked)...................................................38
Indirect Addressing......................................39
Program Counter Operation ........................41
PIC17C4X
DD
DD
) ....................................17
DD
Power-Up) ................18
DS30412C-page 231
)............................17
DD
) ..........17