LPC2470FET208,551 NXP Semiconductors, LPC2470FET208,551 Datasheet - Page 377

• Manufacturer Part Number: LPC2470FET208,551
• Description: IC ARM7 MCU LCD 208-TFBGA
• Manufacturer: NXP Semiconductors
• Series: LPC2400r

Specifications of LPC2470FET208,551

• Package / Case: 208-TFBGA
• 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: 208TFBGA
• 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: 568-4362; 935284071551; LPC2470FET208-S

NXP Semiconductors
UM10237_4
User manual
14.4.1 Next_DD_pointer
14.4.2 DMA_mode
14.4.3 Next_DD_valid
14.4.4 Isochronous_endpoint
14.4.5 Max_packet_size
Table 357. DMA descriptor
[1]
Legend: R - Read; W - Write; I - Initialize
Pointer to the memory location from where the next DMA descriptor will be fetched.
Specifies the DMA mode of operation. Two modes have been defined: Normal and
Automatic Transfer Length Extraction (ATLE) mode. In normal mode, software initializes
the DMA_buffer_length for OUT endpoints. In ATLE mode, the DMA_buffer_length is
extracted from the incoming data. See
(ATLE) mode operation” on page 383
This bit indicates whether the software has prepared the next DMA descriptor. If set, the
DMA engine fetches the new descriptor when it is finished with the current one.
When set, this bit indicates that the descriptor belongs to an isochronous endpoint. Hence
5 words have to be read when fetching it.
The maximum packet size of the endpoint. This parameter is used while transferring the
data for IN endpoints from the memory. It is used for OUT endpoints to detect the short
packet. This is applicable to non-isochronous endpoints only. This field should be set to
the same MPS value that is assigned for the endpoint using the USBMaxPSize register.
Word
position
3
4
Write only in ATLE mode
Access
(H/W)
R/W
W
W
W
W
R
-
R/W
R/W
Access
(S/W)
R/I
R/I
R/I
R/I
R/I
W
-
R/I
R/W
Rev. 04 — 26 August 2009
Bit
position
0
4:1
5
6
7
13:8
15:14
31:16
31:0
Description
DD_retired (To be initialized to 0)
DD_status (To be initialized to 0000):
Packet_valid (To be initialized to 0)
LS_byte_extracted (ATLE mode) (To be initialized to 0)
MS_byte_extracted (ATLE mode) (To be initialized to 0)
Message_length_position (ATLE mode)
Reserved
Present_DMA_count (To be initialized to 0)
Isochronous_packetsize_memory_address
for more details.
Section 13–14.7 “Auto Length Transfer Extraction
0000 - NotServiced
0001 - BeingServiced
0010 - NormalCompletion
0011 - DataUnderrun (short packet)
1000 - DataOverrun
1001 - SystemError
Chapter 13: LPC24XX USB device controller
UM10237
© NXP B.V. 2009. All rights reserved.
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