LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 257

• Manufacturer Part Number: LPC1767FBD100,551
• Description: IC ARM CORTEX MCU 512K 100-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC17xxr

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

NXP Semiconductors
Table 251. DMA descriptor
UM10360
User manual
Word
position
0
1
2
3
4
11.15.4.1 Next_DD_pointer
Access
(H/W)
R
R
R
-
R
R
R/W
R/W
R/W
W
W
W
W
R
-
R/W
R/W
[1]
Table 251
[1]
Legend: R - Read; W - Write; I - Initialize
Pointer to the memory location from where the next DMA descriptor will be fetched.
Access
(S/W)
R/W
R/W
R/W
-
R/W
R/W
R/W
R/W
R/I
R/I
R/I
R/I
R/I
W
-
R/I
R/W
•
•
•
•
•
The length of the DMA buffer
The start address of the next DMA descriptor
Control information
Count information (number of bytes transferred)
Status information
Write-only in ATLE mode
lists the DMA descriptor fields.
Bit
position
31:0
1:0
2
3
4
15:5
31:16
31:0
0
4:1
5
6
7
13:8
15:14
31:16
31:0
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Description
Next_DD_pointer
DMA_mode (00 -Normal; 01 - ATLE)
Next_DD_valid (1 - valid; 0 - invalid)
Reserved
Isochronous_endpoint (1 - isochronous; 0 - non-isochronous)
Max_packet_size
DMA_buffer_length
This value is specified in bytes for non-isochronous endpoints and in
number of packets for isochronous endpoints.
DMA_buffer_start_addr
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
0000 - NotServiced
0001 - BeingServiced
0010 - NormalCompletion
0011 - DataUnderrun (short packet)
1000 - DataOverrun
1001 - SystemError
Chapter 11: LPC17xx USB device controller
UM10360
© NXP B.V. 2010. All rights reserved.
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