LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 388
![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
15.2 Isochronous endpoints
11. Both B_1 and B_2 are empty, and the active buffer is B_2. The next packet written by
In DMA mode, switching of the active buffer is handled automatically in hardware. For
Bulk IN endpoints, proactively filling an endpoint buffer to take advantage of the double
buffering can be accomplished by manually starting a packet transfer using the
USBDMARSet register.
For isochronous endpoints, the active data buffer is switched by hardware when the
FRAME interrupt occurs. The SIE Clear Buffer and Validate Buffer commands do not
cause the active buffer to be switched.
Double buffering allows the software to make full use of the frame interval writing or
reading a packet to or from the active buffer, while the packet in the other buffer is being
sent or received on the bus.
For an OUT isochronous endpoint, any data not read from the active buffer before the end
of the frame is lost when it switches.
For an IN isochronous endpoint, if the active buffer is not validated before the end of the
frame, an empty packet is sent on the bus when the active buffer is switched, and its
contents will be overwritten when it becomes active again.
software will go into B_2.
Rev. 04 — 26 August 2009
Chapter 13: LPC24XX USB device controller
UM10237
© NXP B.V. 2009. All rights reserved.
388 of 792
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