LPC2468FET208,551 NXP Semiconductors, LPC2468FET208,551 Datasheet - Page 601
LPC2468FET208,551
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
935283234551
LPC2468FET208-S
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC2468FET208,551
Manufacturer:
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Quantity:
6 174
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Part Number:
LPC2468FET208,551
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UM10237_4
User manual
9.10 I
9.11 Bus error
If an uncontrolled source generates a superfluous START or masks a STOP condition,
then the I
obtained within a reasonable amount of time, then a forced access to the I
possible. This is achieved by setting the STO flag while the STA flag is still set. No STOP
condition is transmitted. The I
and is able to transmit a START condition. The STO flag is cleared by hardware (see
Figure
An I
SCL line is obstructed (pulled LOW) by a device on the bus, no further serial transfer is
possible, and the I
problem must be resolved by the device that is pulling the SCL bus line LOW.
If the SDA line is obstructed by another device on the bus (e.g., a slave device out of bit
synchronization), the problem can be solved by transmitting additional clock pulses on the
SCL line (see
the STA flag is set, but no START condition can be generated because the SDA line is
pulled LOW while the I
START condition after every two additional clock pulses on the SCL line. When the SDA
line is eventually released, a normal START condition is transmitted, state 0x08 is
entered, and the serial transfer continues.
If a forced bus access occurs or a repeated START condition is transmitted while SDA is
obstructed (pulled LOW), the I
In each case, state 0x08 is entered after a successful START condition is transmitted and
normal serial transfer continues. Note that the CPU is not involved in solving these bus
hang-up problems.
A bus error occurs when a START or STOP condition is present at an illegal position in the
format frame. Examples of illegal positions are during the serial transfer of an address
byte, a data bit, or an acknowledge bit.
The I
a master or an addressed slave. When a bus error is detected, the I
switches to the not addressed slave mode, releases the SDA and SCL lines, sets the
interrupt flag, and loads the status register with 0x00. This status code may be used to
vector to a state service routine which either attempts the aborted serial transfer again or
simply recovers from the error condition as shown in
2
08H
Fig 124. Simultaneous repeated START conditions from 2 masters
C Bus obstructed by a Low level on SCL or SDA
S
2
C bus hang-up occurs if SDA or SCL is pulled LOW by an uncontrolled source. If the
2
C hardware only reacts to a bus error when it is involved in a serial transfer either as
22–125).
SLA
2
C bus stays busy indefinitely. If the STA flag is set and bus access is not
Figure
W
18H
2
A
C hardware cannot resolve this type of problem. When this occurs, the
22–126). The I
Rev. 04 — 26 August 2009
2
C bus is considered free. The I
DATA
2
2
C hardware behaves as if a STOP condition was received
C hardware performs the same action as described above.
repeated START earlier
other Master sends
28H
A
2
C hardware transmits additional clock pulses when
S
Chapter 22: LPC24XX I
OTHER MASTER
CONTINUES
Table
2
C hardware attempts to generate a
22–529.
2
retry
08H
P
C interfaces I
2
C block immediately
UM10237
© NXP B.V. 2009. All rights reserved.
S
2
C bus is
SLA
601 of 792
2
C0/1/2
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