PIC16F57-I/P Microchip Technology Inc., PIC16F57-I/P Datasheet - Page 36

• Manufacturer Part Number: PIC16F57-I/P
• Description: 28 PIN, 3K FLASH, 72 RAM, 20 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F57-I/P

• Cpu Speed: 5 MIPS
• Eeprom Memory: 0 Bytes
• Frequency: 20 MHz
• Input Output: 20
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 28-pin PDIP
• Programmable Memory: 3K Bytes
• Ram Size: 72 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F5X
FIGURE 7-3:
TABLE 7-1:
DS41213C-page 34
PC
(Program
Counter)
Instruction
Fetch
01h
N/A
Legend: Shaded cells not used by Timer0, - = unimplemented, x = unknown, u = unchanged.
Timer0
Instruction
Execute
Address
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
T0
TMR0
OPTION
PC - 1
Name
REGISTERS ASSOCIATED WITH TIMER0
TIMER0 TIMING: INTERNAL CLOCK/PRESCALER 1:2
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
Timer0 - 8-bit real-time clock/counter
Bit 7
—
PC
T0 + 1
Bit 6
—
Write TMR0
executed
PC + 1
T0CS
Bit 5
T0SE
Bit 4
Read TMR0
reads NT0
PC + 2
Bit 3
PSA
Read TMR0
reads NT0
Bit 2
PS2
PC + 3
NT0
Bit 1
PS1
Read TMR0
reads NT0
PC + 4
Bit 0
PS0
 2004 Microchip Technology Inc.
xxxx xxxx uuuu uuuu
--11 1111 --11 1111
Read TMR0
reads NT0
Power-on
Value on
Reset
PC + 5
Read TMR0
reads NT0 + 1
WDT Reset
MCLR and
NT0 + 1
Value on
PC + 6