LPC2292 datasheet(9/40 Pages) PHILIPS

9 / 40 page

Philips Semiconductors

LPC2292/LPC2294

16/32-bit ARM microcontrollers with external memory interface

Preliminary data

Rev. 01 — 05 February 2004

9 of 40

9397 750 12748

P2.27

I/O

D27 — External memory data line 27.

BOOT1 — While RESET is low, together with BOOT0 controls booting and

internal operation. Internal pull-up ensures high state if pin is left

unconnected.

BOOT1:0=00 selects 8-bit memory on CS0 for boot.

BOOT1:0=01 selects 16-bit memory on CS0 for boot.

BOOT1:0=10 selects 32-bit memory on CS0 for boot.

BOOT1:0=11 selects Internal Flash memory.

P2.28

I/O

D28 — External memory data line 28.

P2.29

I/O

D29 — External memory data line 29.

P2.30

I/O

D30 — External memory data line 30.

AIN4 — A/D converter, input 4. This analog input is always connected to its

pin.

P2.31

I/O

D31 — External memory data line 31.

AIN5 — A/D converter, input 5. This analog input is always connected to its

pin.

P3.0 to P3.31

89-87, 81,

80, 74-71,

66-62, 56,

55, 53,

48-44, 41,

40, 36, 35,

30-27, 97, 96

I/O

Port 3 — Port 3 is a 32-bit bi-directional I/O port with individual direction

controls for each bit. The operation of port 3 pins depends upon the pin

function selected via the Pin Connect Block.

P3.0

A0 — External memory address line 0.

P3.1

A1 — External memory address line 1.

P3.2

A2 — External memory address line 2.

P3.3

A3 — External memory address line 3.

P3.4

A4 — External memory address line 4.

P3.5

A5 — External memory address line 5.

P3.6

A6 — External memory address line 6.

P3.7

A7 — External memory address line 7.

P3.8

A8 — External memory address line 8.

P3.9

A9 — External memory address line 9.

P3.10

A10 — External memory address line 10.

P3.11

A11 — External memory address line 11.

P3.12

A12 — External memory address line 12.

P3.13

A13 — External memory address line 13.

P3.14

A14 — External memory address line 14.

P3.15

A15 — External memory address line 15.

P3.16

A16 — External memory address line 16.

P3.17

A17 — External memory address line 17.

P3.18

A18 — External memory address line 18.

P3.19

A19 — External memory address line 19.

Table 3:

Pin description…continued

Symbol

Type

Description

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