PIC12C508A-04/EJW MICROCHIP [Microchip Technology], PIC12C508A-04/EJW Datasheet - Page 23
PIC12C508A-04/EJW
Manufacturer Part Number
PIC12C508A-04/EJW
Description
8-Pin, 8-Bit CMOS Microcontrollers
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.PIC12C508A-04EJW.pdf
(113 pages)
- Current page: 23 of 113
- Download datasheet (2Mb)
FIGURE 5-2:
Instruction
Instruction
executed
GP5:GP0
1999 Microchip Technology Inc.
fetched
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
MOVWF GPIO
PC
SUCCESSIVE I/O OPERATION
MOVF GPIO,W
MOVWF GPIO
(Write to
GPIO)
Port pin
written here
PC + 1
MOVF GPIO,W
(Read
Port pin
sampled here
GPIO)
NOP
PC + 2
PC + 3
NOP
NOP
This example shows a write to GPIO followed
by a read from GPIO.
Data setup time = (0.25 T
where: T
Therefore, at higher clock frequencies, a
write followed by a read may be problematic.
T
CY
PD
= instruction cycle.
= propagation delay
PIC12C5XX
CY
DS40139E-page 23
– T
PD
)
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