AT697F datasheet(106/155 Pages) ATMEL

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106

7703C–AERO–6/09

AT697F ADVANCE INFORMATION

General Purpose

Interface Registers

Table 84. I/O Port Data Register - IODAT

Address = 0x800000A0

meddat[7:0]

lowdat[7:0]

iodata[15:0]

r/w

xxxx xxxx

xxxx xxxx xxxx xxxx

Bit Number

Mnemonic

Description

15..0

iodata[15:0]

I/O port data

23..16

meddat[7:0]

Meddium Data

Corresponding to the data D[15:8]

31..24

lowdat[7:0]

Low Data

Corresponding to the data D[7:0]

when read, returns the current value of the I/O port;

when written, value is driven on the I/O port signals (if enabled as Output )

Table 85. I/O Port Direction Register - IODIR

Address = 0x800000A4

reserved

iodir[15:0]

r/w

r/w r/w

r/w

xxxx xxxx xxxx xx

00 0000 0000 0000 0000

Bit Number

Mnemonic

Description

meddir

Defines the direction of D[15..8]

lowdir

Defines the direction of D[7..0]

15..0

iodir[15:0]

I/O port direction

Defines the direction of I/O ports 15 - 0.

‘1’ = output

‘0’ = input

Table 86. I/O Port Interrupt Register - IOIT1

Address = 0x800000A8

isel3[4:0]

isel2[4:0]

isel1[4:0]

isel0[4:0]

r/w r/w r/w

r/w

r/w r/w r/w

r/w

r/w r/w r/w

r/w

r/w r/w r/w

r/w

x xxxx

AT697F Datasheet(PDF) 106 Page - ATMEL Corporation

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