LPC2470FBD208,551 NXP Semiconductors, LPC2470FBD208,551 Datasheet - Page 232
![IC ARM7 MCU LCD 208-LQFP](/photos/12/13/121391/208-lqfp_sot459-1_pkg_sml.jpg)
LPC2470FBD208,551
Manufacturer Part Number
LPC2470FBD208,551
Description
IC ARM7 MCU LCD 208-LQFP
Manufacturer
NXP Semiconductors
Series
LPC2400r
Datasheets
1.OM11077.pdf
(792 pages)
2.LPC2470FET208551.pdf
(89 pages)
3.LPC2470FET208551.pdf
(91 pages)
Specifications of LPC2470FBD208,551
Package / Case
208-LQFP
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
208LQFP
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
568-4361-5
935284068551
LPC2470FBD208-S
935284068551
LPC2470FBD208-S
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2470FBD208,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10237_4
User manual
7.2.10 Transmit Number of Descriptors Register (TxDescriptorNumber -
7.2.11 Transmit Produce Index Register (TxProduceIndex - 0xFFE0 0128)
Table 214. Transmit Status Base Address register (TxStatus - address 0xFFE0 0120) bit
The transmit status base address is a byte address aligned to a word boundary i.e. LSB
1:0 are fixed to ’00’. The register contains the lowest address in the array of statuses.
0xFFE0 0124)
The Transmit Number of Descriptors register (TxDescriptorNumber) has an address of
0xFFE0 0124. Its bit definition is shown in
Table 215. Transmit Number of Descriptors register (TxDescriptorNumber - address
The transmit number of descriptors register defines the number of descriptors in the
descriptor array for which TxDescriptor 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 Transmit Produce Index register (TxProduceIndex) has an address of 0xFFE0 0128.
Its bit definition is shown in
Table 216. Transmit Produce Index register (TxProduceIndex - address 0xFFE0 0128) bit
The transmit produce index register defines the descriptor that is going to be filled next by
the software transmit driver. The transmit descriptor array is empty as long as
TxProduceIndex equals TxConsumeIndex. If the transmit hardware is enabled, it will start
transmitting frames as soon as the descriptor array is not empty. After a frame has been
processed by software, it should increment the TxProduceIndex. The value must be
wrapped to 0 once the value of TxDescriptorNumber has been reached. If the
TxProduceIndex equals TxConsumeIndex - 1 the descriptor array is full and software
should stop producing new descriptors until hardware has transmitted some frames and
updated the TxConsumeIndex.
Bit
1:0
31:2
Bit
15:0
31:16
Bit
15:0
31:16
Symbol
TxDescriptorNumber Number of descriptors in the descriptor array for which
-
Symbol
TxProduceIndex Index of the descriptor that is going to be filled next by the
-
Symbol
-
TxStatus
description
0xFFE0 0124) bit description
description
Function
Fixed to ’00’
MSBs of transmit status base address.
Rev. 04 — 26 August 2009
Function
transmit software driver.
Unused
Table
Function
TxDescriptor is the base address. The register is minus
one encoded.
Unused
11–216.
Table
11–215.
Chapter 11: LPC24XX Ethernet
UM10237
© NXP B.V. 2009. All rights reserved.
Reset
value
-
0x0
232 of 792
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value
0x0
Reset
value
0x0
0x0
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