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| PIC16F946 Datasheet, PDF (69/274 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt Technology | |||
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FIGURE 3-28:
BLOCK DIAGRAM OF RF<7:0>
Data Bus
WR PORTF
WR TRISF
DQ
CK Q
Data Latch
DQ
CK Q
TRIS Latch
RD TRISF
Analog Mode or
SE<31:28, 35:32> and LCDEN Schmitt
Trigger
PIC16F946
VDD
RF<7:0>
Pin
RD PORTF
SEG<31:28, 35:32>
SE<31:28, 35:32> and LCDEN
TABLE 3-6: SUMMARY OF REGISTERS ASSOCIATED WITH PORTF
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR, BOR
Value on all
other
Resets
1Fh
ADCON0
ADFM VCFG1 VCFG0 CHS2
CHS1
CHS0 GO/DONE ADON 0000 0000 0000 0000
91h
ANSEL
ANS7 ANS6
ANS5
ANS4
ANS3
ANS2
ANS1
ANS0 1111 1111 1111 1111
107h
LCDCON
LCDEN SLPEN WERR VLCDEN CS1
CS0
LMUX1 LMUX0 0001 0011 0001 0011
185h
TRISF
TRISF7 TRISF6 TRISF5 TRISF4 TRISF3 TRISF2 TRISF1 TRISF0 1111 1111 1111 1111
188h
PORTF
RF7
RF6
RF5
RF4
RF3
RF2
RF1
RF0 xxxx xxxx uuuu uuuu
19Ch
LCDSE3(1)
SE31 SE30
SE29
SE28
SE27
SE26
SE25
SE24 0000 0000 uuuu uuuu
19Dh
LCDSE4(1)
SE39 SE38
SE37
SE36
SE35
SE34
SE33
SE32 0000 0000 uuuu uuuu
Legend: x = unknown, u = unchanged, â = unimplemented locations read as â0â. Shaded cells are not used by PORTF.
Note 1: This register is only initialized by a POR or BOR and is unchanged by other Resets.
© 2005 Microchip Technology Inc.
Preliminary
DS41265A-page 67
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