Mikroelektronika MikroE Development Kits MIKROE-999 Scheda Tecnica
Codici prodotto
MIKROE-999
2004 Microchip Technology Inc.
DS39609B-page 231
PIC18F6520/8520/6620/8620/6720/8720
FIGURE 21-2:
VOLTAGE REFERENCE OUTPUT BUFFER EXAMPLE
TABLE 21-1:
REGISTERS ASSOCIATED WITH COMPARATOR VOLTAGE REFERENCE
CV
REF
Output
+
–
–
CV
REF
Module
Voltage
Reference
Output
Impedance
R
(1)
RF5
Note 1:
R is dependent upon the Comparator Voltage Reference Configuration bits CVRCON<3:0> and CVRCON<5>.
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR
Value on
all other
Resets
CVRCON
CVREN
CVROE
CVRR
CVRSS
CVR3
CVR2
CVR1
CVR0
0000 0000 0000 0000
CMCON
C2OUT
C1OUT
C2INV
C1INV
CIS
CM2
CM1
CM0
0000 0000 0000 0000
TRISF
TRISF7
TRISF6 TRISF5 TRISF4 TRISF3
TRISF2
TRISF1
TRISF0
1111 1111 1111 1111
Legend:
x
= unknown,
u
= unchanged, – = unimplemented, read as ‘
0
’.
Shaded cells are not used with the comparator voltage reference.