Rainbow-electronics ATA6286 Manual de usuario descargar pdf (Pagina 5)

4958AS–AUTO–09/06

ATA6285/ATA6286 [Preliminary]

2.5 Pin Names

2.5.1 VCC

Supply voltage

2.5.2 GND

Ground

2.5.3 Port B (PB7..0)

Port B is a 5(8)-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The

PB7, PB6 and PB2 ports are only used as internal I/O ports for inter-die connections. The Port B

output buffers have symmetrical drive characteristics with both high sink and source current

capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up

resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,

even if the clock is not running.

Port B also serves the functions of various special features of the ATmegaT.

19 LF1 – – LF-receiver input 1

20 LF2 – – LF-receiver input 2

21 V

– – Power supply voltage (V

+ AV

)

22 PC2 – PCINT10 - Port C2

23 PC1 CLKO PCINT9 System clock output Port C1

24 PC0 ECIN0 PCINT8 External Clock input 0 Port C1

25 PD0 T2ICP PCINT16 Timer2 external input capture Port D0

26 PD1 T3I PCINT17 Timer3 external input clock Port D1

27 PB0 T3ICP PCINT0 Timer3 external input capture Port B0

28 GND – – Power supply ground

29 GND – – Power supply ground

Inter-die

(1)

PD3 INT1 PCINT19

External Interrupt 1

→Inter-die

connection

Port D2

Inter-die

(1)

PD4 ECIN1 PCINT20

External Clock input 1

→Inter-die

connection

Port D4

Inter-die

(1)

PD5 T2O1 PCINT21

Timer2 Modulator output 1

→

Inter-die connection

Port D5

Inter-die

(1)

PD6 T2O2 PCINT22

Timer2 Modulator output 2

→

Inter-die connection

Port D6

30 PD7 SDIN PCINT23 SSI –Serial Data Input Port D7

31 PD2 INT0 PCINT18 External interrupt input 0 Port D2

32 PB3 MOSI PCINT3 SPI Port B3

Table 2-2. Pin Description (Continued)

Pin Number Pin Name

Alternate

Function 1

Alternate

Function 2 Function Comment

Note: 1. Internal inter-die connection of the MCP

1 2 3 4 5 6 7 8 9 10 ... 17 18

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