PIC16F688 Block Diagram Of Rc5 - Microchip Technology Inc.

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PIC16F688

Manufacturer Part Number
PIC16F688
Description
Manufacturer
Microchip Technology Inc.
Datasheet
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PIC16F688
4.3.5
Figure 4-9 shows the diagram for this pin. The RC4 is
configurable to function as one of the following:
• a general purpose I/O
• a digital output from the comparator
• a digital I/O for the EUSART
FIGURE 4-9:
TABLE 4-2:
DS41203C-page 44
ANSEL
CMCON0
PORTC
TRISC
Legend:
Data Bus
PORTC
PORTC
TRISC
TRISC
Name
WR
WR
RD
RD
Note 1:
USART Select
EUSART
TX/CLKOUT
C2OUT EN
D
D
To EUSART CLK Input
CK
CK
x = unknown, u = unchanged, – = unimplemented locations read as ‘0’. Shaded cells are not used by PORTC.
RC4/C2OUT/TX/CK
C2OUT
C2OUT
ANS7
Bit 7
USART Select signals selects between port
data and peripheral output.
Q
Q
Q
Q
SUMMARY OF REGISTERS ASSOCIATED WITH PORTC
(1)
0
1
C1OUT
ANS6
BLOCK DIAGRAM OF RC4
Bit 6
0
1
TRISC5
C2INV
ANS5
Bit 5
RC5
TRISC4
C1INV
ANS4
Bit 4
V
RC4
V
DD
SS
I/O Pin
TRISC3
ANS3
Bit 3
RC3
CIS
TRISC2
ANS2
Bit 2
CM2
RC2
4.3.6
The RC5 is configurable to function as one of the
following:
• a general purpose I/O
• a digital I/O for the EUSART
FIGURE 4-10:
PORTC
PORTC
Data Bus
TRISC
TRISC
WR
WR
RD
RD
To EUSART RX/DT In
TRISC1
ANS1
Bit 1
CM1
RC1
D
D
CK
CK
RC5/RX/DT
Q
Q
Q
Q
EUSART Out
TRISC0
ANS0
Bit 0
CM0
RC0
Enable
EUSART
DT Out

BLOCK DIAGRAM OF RC5

PIN
© 2007 Microchip Technology Inc.
1111 1111
0000 0000
--xx 0000
--11 1111
POR, BOR
Value on
1
0
1111 1111
0000 0000
--xx 0000
--11 1111
Value on
V
all other
V
Resets
DD
SS
I/O Pin

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