PIC16F506 Microchip Technology, PIC16F506 Datasheet - Page 42

• Manufacturer Part Number: PIC16F506
• Description: (PIC12F510 / PIC16F506) 8-Bit Flash Microcontroller
• Manufacturer: Microchip Technology

PIC12F510/16F506
FIGURE 6-2:
FIGURE 6-3:
TABLE 6-1:
DS41268B-page 40
01h
07h
08h
N/A
N/A
Legend:
Addr
PC
(Program
Counter)
Instruction
Fetch
Timer0
Instruction
Executed
PC
(Program
Counter)
Instruction
Fetch
Timer0
Instruction
Executed
Note 1: The TRIS of the T0CKI pin is overridden when T0CS = 1.
TMR0
CM1CON0
CM1CON0
OPTION
TRISGPIO
2: For PIC12F510.
3: For PIC16F506.
Name
Shaded cells not used by Timer0, – = unimplemented, x = unknown, u = unchanged.
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
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
T0
PC - 1
PC - 1
(2)
(3)
(1)
REGISTERS ASSOCIATED WITH TIMER0
Timer0 – 8-bit Real-Time Clock/Counter
C1OUT
C1OUT
GPWU
TIMER0 TIMING: INTERNAL CLOCK/NO PRESCALE
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
Bit 7
—
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
MOVWF TMR0 MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
T0 + 1
T0 + 1
PC
PC
C1OUTEN C1POL
C1OUTEN C1POL
GPPU
Bit 6
—
Write TMR0
executed
Write TMR0
executed
T0 + 2
I/O Control Register
PC + 1
PC + 1
T0CS
Bit 5
C1T0CS
C1T0CS
T0SE
Bit 4
Preliminary
Read TMR0
reads NT0
Read TMR0
reads NT0
PC + 2
PC + 2
C1ON
C1ON
Bit 3
PSA
NT0
Read TMR0
reads NT0
Read TMR0
reads NT0
NT0
PC + 3
PC + 3
C1NREF C1PREF C1WU
C1NREF C1PREF C1WU
Bit 2
PS2
Read TMR0
reads NT0
Read TMR0
reads NT0
Bit 1
PS1
PC + 4
PC + 4
Bit 0
PS0
© 2006 Microchip Technology Inc.
NT0 + 1
Read TMR0
reads NT0 + 1
Read TMR0
reads NT0 + 1
PC + 5
PC + 5
xxxx xxxx uuuu uuuu
1111 1111 1111 1111
---- 1111 --11 1111
1111 1111
1111 1111
Power-On
Value on
Reset
Read TMR0
reads NT0 + 2
Read TMR0
reads NT0 + 2
NT0 + 2
NT0 + 1
PC + 6
PC + 6
uuuu uuuu
uuuu uuuu
Value on
All Other
Resets