LPC1343FHN33,551 NXP Semiconductors, LPC1343FHN33,551 Datasheet - Page 284

• Manufacturer Part Number: LPC1343FHN33,551
• Description: IC MCU 32BIT 32KB FLASH 33HVQFN
• Manufacturer: NXP Semiconductors
• Series: LPC13xxr

Specifications of LPC1343FHN33,551

• Program Memory Type: FLASH
• Program Memory Size: 32KB (32K x 8)
• Package / Case: 33-VQFN Exposed Pad, 33-HVQFN, 33-SQFN, 33-DHVQFN
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 72MHz
• Connectivity: I²C, Microwire, SPI, SSI, SSP, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 28
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC13
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 28
• Number Of Timers: 4
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, KSK-LPC1343
• Development Tools By Supplier: OM11039, OM11040, OM11046, OM11048
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 33HVQFN EP
• Device Core: ARM Cortex M3
• Family Name: LPC1000
• Maximum Speed: 72 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4944; 935289655551

NXP Semiconductors
Table 279: A/D Control Register (AD0CR - address 0x4001 C000) bit description
UM10375
User manual
Bit
7:0
15:8
16
19:17 CLKS
23:20 -
Symbol
SEL
CLKDIV
BURST
18.6.1 A/D Control Register (AD0CR - 0x4001 C000)
Value Description
0
1
000
001
010
011
100
101
110
111
The A/D Control Register provides bits to select A/D channels to be converted, A/D timing,
A/D modes, and the A/D start trigger.
Selects which of the AD7:0 pins is (are) to be sampled and converted. Bit 0 selects Pin
AD0, bit 1 selects pin AD1,..., and bit 7 selects pin AD7.
In software-controlled mode (BURST = 0), only one channel can be selected, i.e. only one
of these bits should be 1.
In hardware scan mode (BURST = 1), any numbers of channels can be selected, i.e any
or all bits can be set to 1. If all bits are set to 0, channel 0 is selected automatically (SEL =
0x01).
The APB clock (PCLK) is divided by CLKDIV +1 to produce the clock for the ADC, which
should be less than or equal to 4.5 MHz. Typically, software should program the smallest
value in this field that yields a clock of 4.5 MHz or slightly less, but in certain cases (such
as a high-impedance analog source) a slower clock may be desirable.
Software-controlled mode: Conversions are software-controlled and require 11 clocks.
Hardware scan mode: The AD converter does repeated conversions at the rate selected
by the CLKS field, scanning (if necessary) through the pins selected by 1s in the SEL
field. The first conversion after the start corresponds to the least-significant bit set to 1 in
the SEL field, then the next higher bits (pins) set to 1 are scanned if applicable. Repeated
conversions can be terminated by clearing this bit, but the conversion in progress when
this bit is cleared will be completed.
Important: START bits must be 000 when BURST = 1 or conversions will not start.
This field selects the number of clocks used for each conversion in Burst mode, and the
number of bits of accuracy of the result in the LS bits of ADDR, between 11 clocks
(10 bits) and 4 clocks (3 bits).
11 clocks / 10 bits
10 clocks / 9 bits
9 clocks / 8 bits
8 clocks / 7 bits
7 clocks / 6 bits
6 clocks / 5 bits
5 clocks / 4 bits
4 clocks / 3 bits
Reserved, user software should not write ones to reserved bits. The value read from a
reserved bit is not defined.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 7 July 2010
Chapter 18: LPC13xx Analog-to-Digital Converter (ADC)
UM10375
© NXP B.V. 2010. All rights reserved.
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0
Reset
Value
0x00
0
000
NA