LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 243

• Manufacturer Part Number: LPC2468FET208,551
• Description: IC ARM7 MCU FLASH 512K 208TFBGA
• Manufacturer: NXP Semiconductors
• Series: LPC2400r

Specifications of LPC2468FET208,551

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• 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, POR, PWM, WDT
• Number Of I /o: 160
• 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/I2S/ISP/SSP/UART/USB
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 160
• Number Of Timers: 6
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, IRD-LPC2468-DEV, SAB-TFBGA208, KSK-LPC2468-PL
• Development Tools By Supplier: OM10100
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1025 - KIT DEV IND REF DESIGN LPC2468622-1024 - BOARD SCKT ADAPTER FOR TFBGA208568-4358 - DISPLAY QVGA TFT FOR OM10100568-4309 - BOARD EXTENSION LPCSTICK568-4308 - EVAL LPC-STICK WITH LPC2468MCB2400U - BOARD EVAL MCB2400 + ULINK2MCB2400 - BOARD EVAL FOR NXP LPC246X SER622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4262; 935283234551; LPC2468FET208-S

NXP Semiconductors
UM10237_4
User manual
Each receive descriptor takes two word locations (8 bytes) in memory. Likewise each
status field takes two words (8 bytes) in memory. Each receive descriptor consists of a
pointer to the data buffer for storing receive data (Packet) and a control word (Control).
The Packet field has a zero address offset, the control field has a 4 byte address offset
with respect to the descriptor address as defined in
Table 233. Receive Descriptor Fields
The data buffer pointer (Packet) is a 32 bits byte aligned address value containing the
base address of the data buffer. The definition of the control word bits is listed in
Table
Table 234. Receive Descriptor Control Word
Table 11–235
Table 235. Receive Status Fields
Each receive status consists of two words. The StatusHashCRC word contains a
concatenation of the two 9 bit hash CRCs calculated from the destination and source
addresses contained in the received frame. After detecting the destination and source
addresses, StatusHashCRC is calculated once, then held for every fragment of the same
frame.
The concatenation of the two CRCs is shown in
Table 236. Receive Status HashCRC Word
Symbol
Packet
Control
Bit
10:0
30:11 -
31
Symbol
StatusInfo
StatusHashCRC 0x4
Bit
8:0
15:9
24:16 DAHashCRC Hash CRC calculated from the destination address.
31:25 -
11–234.
Symbol
SAHashCRC Hash CRC calculated from the source address.
-
Symbol
Size
Interrupt
lists the fields in the receive status elements from the status array.
Address
offset
0x0
0x4
Address
offset
0x0
Description
Size in bytes of the data buffer. This is the size of the buffer reserved by the
device driver for a frame or frame fragment i.e. the byte size of the buffer
pointed to by the Packet field. The size is -1 encoded e.g. if the buffer is 8
bytes the size field should be equal to 7.
Unused
If true generate an RxDone interrupt when the data in this frame or frame
fragment and the associated status information has been committed to
memory.
Description
Unused
Unused
Rev. 04 — 26 August 2009
Bytes Description
4
4
Bytes Description
4
4
Base address of the data buffer for storing receive data.
Control information, see
Receive status return flags, see
The concatenation of the destination address hash CRC and
the source address hash CRC.
Table
Table
11–236:
Table
Chapter 11: LPC24XX Ethernet
11–233.
11–234.
Table
11–237.
UM10237
© NXP B.V. 2009. All rights reserved.
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