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ATMEGA16-16MC Datasheet(PDF) 60 Page - ATMEL Corporation

Part No. ATMEGA16-16MC
Description  8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash
Download  315 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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ATMEGA16-16MC Datasheet(HTML) 60 Page - ATMEL Corporation

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60
ATmega16(L)
2466E–AVR–10/02
Note:
1. When enabled, the Two-wire Serial Interface enables slew-rate controls on the output
pins PC0 and PC1. This is not shown in the figure. In addition, spike filters are con-
nected between the AIO outputs shown in the port figure and the digital logic of the
TWI module.
Alternate Functions of Port D
The Port D pins with alternate functions are shown in Table 31.
The alternate pin configuration is as follows:
• OC2 – Port D, Bit 7
OC2, Timer/Counter2 Output Compare Match output: The PD7 pin can serve as an
external output for the Timer/Counter2 Output Compare. The pin has to be configured
as an output (DDD7 set (one)) to serve this function. The OC2 pin is also the output pin
for the PWM mode timer function.
• ICP – Port D, Bit 6
ICP – In pu t Ca ptu re Pin: The PD 6 p in can a ct as an Inp ut Cap ture pin for
Timer/Counter1.
Table 30. Overriding Signals for Alternate Functions in PC3..PC0(1)
Signal
Name
PC3/TMS
PC2/TCK
PC1/SDA
PC0/SCL
PUOE
JTAGEN
JTAGEN
TWEN
TWEN
PUOV
1
1
PORTC1 • PUD
PORTC0 • PUD
DDOE
JTAGEN
JTAGEN
TWEN
TWEN
DDOV
0
0
SDA_OUT
SCL_OUT
PVOE
0
0
TWEN
TWEN
PVOV
0
0
0
0
DIEOE
JTAGEN
JTAGEN
0
0
DIEOV
0
0
0
0
DI
AIO
TMS
TCK
SDA INPUT
SCL INPUT
Table 31. Port D Pins Alternate Functions
Port Pin
Alternate Function
PD7
OC2 (Timer/Counter2 Output Compare Match Output)
PD6
ICP (Timer/Counter1 Input Capture Pin)
PD5
OC1A (Timer/Counter1 Output Compare A Match Output)
PD4
OC1B (Timer/Counter1 Output Compare B Match Output)
PD3
INT1 (External Interrupt 1 Input)
PD2
INT0 (External Interrupt 0 Input)
PD1
TXD (USART Output Pin)
PD0
RXD (USART Input Pin)


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