ATAM862 datasheet(37/110 Pages) ATMEL

Part #	ATAM862

Description	Microcontroller with UHF ASK/FSK Transmitter

PDF	110 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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37 / 110 page

4554E–4BMCU–05/06

ATAM862-3

Figure 22-2. Bi-directional Port 2

22.2.1

Port 2 Data Register (P2DAT)

Primary register address: "2"hex

* Bit 3 -> MSB, Bit 0 -> LSB

22.2.2

Port 2 Control Register (P2CR)

Auxiliary register address: "2"hex

Value: 1111b means all pins in input mode

Table 22-1.

Port 2 Control Register

Master reset

BP2y

Configurable

P2DATy

P2CRy

I/O Bus

Switched

pull-up

Static

Pull-up

(Data out)

(Direction)

Static

Pull-down

Switched

pull-down

Bit 3 *

Bit 2

Bit 1

Bit 0

P2DAT3

P2DAT2

P2DAT1

P2DAT0

Reset value: 1111b

Bit 3Bit 2Bit 1Bit 0

P2CR3

P2CR2

P2CR1

P2CR0

Reset value: 1111b

Code

3 2 1 0

Function

x x x 1

BP20 in input mode

x x x 0

BP20 in output mode

x x 1 x

BP21 in input mode

x x 0 x

BP21 in output mode

x 1 x x

BP22 in input mode

x 0 x x

BP22 in output mode

1 x x x

BP23 in input mode

0 x x x

BP23 in output mode

ATAM862 Datasheet(PDF) 37 Page - ATMEL Corporation

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