LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 29
![IC ARM7 MCU LCD 208-LQFP](/photos/12/13/121391/208-lqfp_sot459-1_pkg_sml.jpg)
LPC2470FBD208,551
Manufacturer Part Number
LPC2470FBD208,551
Description
IC ARM7 MCU LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(792 pages)
2.LPC2470FET208551.pdf
(89 pages)
3.LPC2470FET208551.pdf
(91 pages)
Specifications of LPC2470FBD208,551
Package / Case
208-LQFP
Core Processor
ARM7
Core Size
16/32-Bit
Speed
72MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, Microwire, MMC, SPI, SSI, SSP, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Type
ROMless
Ram Size
98K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
16 bit, 32 bit
Data Ram Size
98 KB
Interface Type
CAN/I2C/I2S/SPI/SSP/UART/USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
160
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB2470U
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
On-chip Dac
1-ch x 10-bit
Package
208LQFP
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4361-5
935284068551
LPC2470FBD208-S
935284068551
LPC2470FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2470FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10237_4
User manual
Once a bit from EINT0 to EINT3 is set and an appropriate code starts to execute (handling
wakeup and/or external interrupt), this bit in EXTINT register must be cleared. Otherwise
event that was just triggered by activity on the EINT pin will not be recognized in future.
Important: whenever a change of external interrupt operating mode (i.e. active
level/edge) is performed (including the initialization of an external interrupt),
corresponding bit in the EXTINT register must be cleared! For details see
3–3.1.3 “External Interrupt Mode register (EXTMODE - 0xE01F C148)”
3–3.1.4 “External Interrupt Polarity register (EXTPOLAR - 0xE01F
For example, if a system wakes up from power-down using low level on external interrupt
0 pin, its post-wakeup code must reset EINT0 bit in order to allow future entry into the
power-down mode. If EINT0 bit is left set to 1, subsequent attempt(s) to invoke
power-down mode will fail. The same goes for external interrupt handling.
More details on power-down mode will be discussed in the following chapters.
Table 25.
[1]
Bit Symbol Description
0
1
2
3
7:4 -
Example: If the EINTx is selected to be low level sensitive and low level is present on corresponding pin,
this bit can not be cleared; this bit can be cleared only when signal on the pin becomes high.
EINT0
EINT1
EINT2
EINT3
External Interrupt Flag register (EXTINT - address 0xE01F C140) bit description
In level-sensitive mode, this bit is set if the EINT0 function is selected for its
pin, and the pin is in its active state. In edge-sensitive mode, this bit is set if
the EINT0 function is selected for its pin, and the selected edge occurs on
the pin.
This bit is cleared by writing a one to it, except in level sensitive mode when
the pin is in its active state.
In level-sensitive mode, this bit is set if the EINT1 function is selected for its
pin, and the pin is in its active state. In edge-sensitive mode, this bit is set if
the EINT1 function is selected for its pin, and the selected edge occurs on
the pin.
This bit is cleared by writing a one to it, except in level sensitive mode when
the pin is in its active state.
In level-sensitive mode, this bit is set if the EINT2 function is selected for its
pin, and the pin is in its active state. In edge-sensitive mode, this bit is set if
the EINT2 function is selected for its pin, and the selected edge occurs on
the pin.
This bit is cleared by writing a one to it, except in level sensitive mode when
the pin is in its active state.
In level-sensitive mode, this bit is set if the EINT3 function is selected for its
pin, and the pin is in its active state. In edge-sensitive mode, this bit is set if
the EINT3 function is selected for its pin, and the selected edge occurs on
the pin.
This bit is cleared by writing a one to it, except in level sensitive mode when
the pin is in its active state.
Reserved, user software should not write ones to reserved bits. The value
read from a reserved bit is not defined.
Rev. 04 — 26 August 2009
[1]
[1]
[1]
[1]
Chapter 3: LPC24XX System control
C14C)”.
UM10237
© NXP B.V. 2009. All rights reserved.
and
Section
Section
29 of 792
Reset
value
0
0
0
0
NA
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