LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 268
LPC1767FBD100,551
Manufacturer Part Number
LPC1767FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1767FBD100551.pdf
(2 pages)
2.LPC1767FBD100551.pdf
(840 pages)
3.LPC1767FBD100551.pdf
(65 pages)
Specifications of LPC1767FBD100,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
100MHz
Connectivity
Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Processor Series
LPC17
Core
ARM Cortex M3
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
568-4967
935289808551
935289808551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1767FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10360
User manual
11.16.2 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.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Chapter 11: LPC17xx USB device controller
UM10360
© NXP B.V. 2010. All rights reserved.
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