LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 160

• 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
UM10360
User manual
10.12.6 Receive Produce Index Register (RxProduceIndex - 0x5000 0114)
10.12.7 Receive Consume Index Register (RxConsumeIndex - 0x5000 0118)
Table 152. Receive Number of Descriptors register (RxDescriptor - address 0x5000 0110) bit
The receive number of descriptors register defines the number of descriptors in the
descriptor array for which RxDescriptor is the base address. The number of descriptors
should match the number of statuses. The register uses minus one encoding i.e. if the
array has 8 elements, the value in the register should be 7.
The Receive Produce Index register (RxProduceIndex) is a read-only register with an
address of 0x5000 0114. Its bit definition is shown in
Table 153. Receive Produce Index register (RxProduceIndex - address 0x5000 0114) bit
The receive produce index register defines the descriptor that is going to be filled next by
the hardware receive process. After a frame has been received, hardware increments the
index. The value is wrapped to 0 once the value of RxDescriptorNumber has been
reached. If the RxProduceIndex equals RxConsumeIndex - 1, the array is full and any
further frames being received will cause a buffer overrun error.
The Receive consume index register (RxConsumeIndex) has an address of 0x5000 0118.
Its bit definition is shown in
Table 154. Receive Consume Index register (RxConsumeIndex - address 0x5000 0118) bit
The receive consume register defines the descriptor that is going to be processed next by
the software receive driver. The receive array is empty as long as RxProduceIndex equals
RxConsumeIndex. As soon as the array is not empty, software can process the frame
pointed to by RxConsumeIndex. After a frame has been processed by software, software
should increment the RxConsumeIndex. The value must be wrapped to 0 once the value
Bit
15:0
31:16
Bit
15:0
31:16 -
Bit
15:0
31:16 -
Symbol
RxProduceIndex Index of the descriptor that is going to be filled next by the
Symbol
RxConsumeIndex Index of the descriptor that is going to be processed next by
Symbol
RxDescriptorNumber
-
description
description
description
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Function
receive datapath.
Unused
Function
the receive
Unused
Table
Function
Number of descriptors in the descriptor array for which
RxDescriptor is the base address. The number of
descriptors is minus one encoded.
Unused
154.
Table
Chapter 10: LPC17xx Ethernet
153.
UM10360
© NXP B.V. 2010. All rights reserved.
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Reset
value
0x0
0x0
Reset
value
0x0
0x0
Reset
value
0x0