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ATmega16HVB Datasheet(PDF) 66 Page - ATMEL Corporation

No. de pieza ATmega16HVB
Descripción Electrónicos  8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash
PDF  273 Pages
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Fabricante Electrónico  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATmega16HVB Datasheet(HTML) 66 Page - ATMEL Corporation

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66
8042A–AVR–07/09
ATmega16HVB/32HVB
• INT3/ SDA - Port C, Bit3
INT3: External Interrupt Source 3. This pin can serve as external interrupt source. INT3 can be
used as an interrupt pin regardless of whether another function is enabled or not.
SDA: SM Bus Data. This pin can serve as bidirectional serial data line for the 2-wire Serial
Interface.
• SCL - Port C, Bit4
SCL: SM Bus Clock. This pin can serve as bidirectional clock line for the 2-wire Serial Interface
Table 14-3 on page 66 relates the alternate functions of Port C to the overriding signals shown in
Figure 14-3 on page 64.
14.5
Register Description
14.5.1
PORTC – Port C Data Register
14.5.2
PINC – Port C Input Pins Address
Table 14-3.
Overriding Signals for Alternate Functions in PC4:0
Signal
Name
PC4/SCL
PC3/INT3/SDA
PC2/INT2
PC1/INT1
PC0/INT0/EXTPROT
PVOE
SM BUS ENABLED
SM BUS ENABLED
EXTPROT ENABLE
PVOV
SM BUS CLOCK
SM BUS DATA
1
DIEOE
SM BUS ENABLED
INT3 ENABLE
SM BUS ENABLED
INT2 ENABLE
INT1ENABLE
INT0 ENABLE
EXTPROT ENABLE
DIEOV
1
1
1
1
1
DI
SM BUS CLOCK
INT3 INPUT
SM BUS DATA
INT2 INPUT
INT1 INPUT
INT0 INPUT
EXTPROT INPUT
DIDR
Bit
765
432
10
0x08 (0x28)
–
–
PORTC5
PORTC4
PORTC3
PORTC2
PORTC1
PORTC0
PORTC
Read/Write
R
R
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
765
432
10
0x06 (0x26)
––
-
PINC4
PINC3
PINC2
PINC1
PINC0
PINC
Read/Write
RR
RRR
RRR
Initial Value
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A



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