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PIC18F23K20-E/ML датащи(PDF) 138 Page - Microchip Technology

номер детали PIC18F23K20-E/ML
подробное описание детали  28/40/44-Pin Flash Microcontrollers with nanoWatt XLP Technology
PDF  456 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F23K20-E/ML датащи(HTML) 138 Page - Microchip Technology

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PIC18F2XK20/4XK20
DS41303G-page 138
 2010 Microchip Technology Inc.
10.8
Port Slew Rate Control
The output slew rate of each port is programmable to
select either the standard transition rate or a reduced
transition rate of 0.1 times the standard to minimize
EMI. The reduced transition time is the default slew
rate for all ports.
REGISTER 10-4:
SLRCON: SLEW RATE CONTROL REGISTER
U-0
U-0
U-0
R/W-1
R/W-1
R/W-1
R/W-1
R/W-1
—
—
—SLRE(1)
SLRD(1)
SLRC
SLRB
SLRA
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-5
Unimplemented: Read as ‘0’
bit 4
SLRE: PORTE Slew Rate Control bit(1)
1
= All outputs on PORTE slew at a limited rate
0
= All outputs on PORTE slew at the standard rate
bit 3
SLRD: PORTD Slew Rate Control bit(1)
1
= All outputs on PORTD slew at a limited rate
0
= All outputs on PORTD slew at the standard rate
bit 2
SLRC: PORTC Slew Rate Control bit
1
= All outputs on PORTC slew at a limited rate
0
= All outputs on PORTC slew at the standard rate
bit 1
SLRB: PORTB Slew Rate Control bit
1
= All outputs on PORTB slew at a limited rate
0
= All outputs on PORTB slew at the standard rate
bit 0
SLRA: PORTA Slew Rate Control bit
1
= All outputs on PORTA slew at a limited rate(2)
0
= All outputs on PORTA slew at the standard rate
Note 1:
These bits are not implemented on PIC18F2XK20 devices.
2:
The slew rate of RA6 defaults to standard rate when the pin is used as CLKOUT.



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