LPC2220 PHILIPS [NXP Semiconductors], LPC2220 Datasheet - Page 22

• Manufacturer Part Number: LPC2220
• Description: 16/32-bit ARM microcontrollers; flashless with 64 kB, with 10-bit ADC and external memory interface
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 9:
9397 750 14061
Product data sheet
PINSEL2 bits
23
24
27:25
31:28
Pin function select register 2 (PINSEL2 - 0xE002 C014)
6.10.1 Features
6.11.1 Features
6.10 General purpose parallel I/O
6.11 10-bit A/D converter
6.9 External memory controller
Description
Controls whether P3.0/A0 is a port pin (0) or an address line (1).
Controls whether P3.1/A1 is a port pin (0) or an address line (1).
Controls the number of pins among P3.23/A23/XCLK and P3[22:2]/A2[22:2] that
are address lines:
000 = None
001 = A3:2 are address lines. 101 = A15:2 are address lines.
010 = A5:2 are address lines. 110 = A19:2 are address lines.
011 = A7:2 are address lines. 111 = A23:2 are address lines.
reserved.
The external Static Memory Controller is a module which provides an interface between
the system bus and external (off-chip) memory devices. It provides support for up to four
independently configurable memory banks (16 MB each with byte lane enable control)
simultaneously. Each memory bank is capable of supporting SRAM, ROM, Flash EPROM,
Burst ROM memory, or some external I/O devices.
Each memory bank may be 8, 16, or 32 bits wide.
Device pins that are not connected to a specific peripheral function are controlled by the
GPIO registers. Pins may be dynamically configured as inputs or outputs. Separate
registers allow setting or clearing any number of outputs simultaneously. The value of the
output register may be read back, as well as the current state of the port pins.
The LPC2210/2220 contains a single 10-bit successive approximation analog to digital
converter with eight multiplexed channels.
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Direction control of individual bits.
Separate control of output set and clear.
All I/O default to inputs after reset.
Measurement range of 0 V to 3 V.
Capable of performing more than 400,000 10-bit samples per second.
Burst conversion mode for single or multiple inputs.
Optional conversion on transition on input pin or Timer Match signal.
16/32-bit ARM microcontrollers with external memory interface
100 = A11:2 are address lines.
Rev. 02— 30 May 2005
…continued
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
LPC2210/2220
Reset value
1 if BOOT1:0 = 00
at RESET = 0,
0 otherwise
BOOT1 during
Reset
000 if
BOOT1:0 = 11 at
Reset, 111
otherwise
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