LPC2458FET180,551 NXP Semiconductors, LPC2458FET180,551 Datasheet - Page 530
LPC2458FET180,551
Manufacturer Part Number
LPC2458FET180,551
Description
IC ARM7 MCU FLASH 512K 180TFBGA
Manufacturer
NXP Semiconductors
Series
LPC2400r
Specifications of LPC2458FET180,551
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
136
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
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
Package / Case
180-TFBGA
Processor Series
LPC24
Core
ARM7TDMI-S
Data Bus Width
32 bit
Data Ram Size
98 KB
Interface Type
CAN, Ethernet, I2C, I2S, IrDA, SPI, SSP, UART, USB
Maximum Clock Frequency
72 MHz
Number Of Programmable I/os
136
Number Of Timers
4
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, SAB-TFBGA180
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
On-chip Dac
10 bit, 1 Channel
Package
180TFBGA
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
For Use With
622-1023 - BOARD SCKT ADAPTER FOR TFBGA180622-1005 - 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
568-4258
935282454551
LPC2458FET180-S
935282454551
LPC2458FET180-S
Available stocks
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Price
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6. Pin description
UM10237_4
User manual
If the SSEL signal goes active, when the SPI block is a master, this indicates another
master has selected the device to be a slave. This condition is known as a mode fault.
When a mode fault is detected, the mode fault (MODF) bit in the status register will be
activated, the SPI signal drivers will be de-activated, and the SPI mode will be changed to
be a slave.
If the Px.y/SSEL/... pin is assigned the SSEL function in Pin Function Select Register 0,
the SSEL signal must always be inactive when the SPI controller is a master.
Slave Abort
A slave transfer is considered to be aborted, if the SSEL signal goes inactive before the
transfer is complete. In the event of a slave abort, the transmit and receive data for the
transfer that was in progress are lost, and the slave abort (ABRT) bit in the status register
will be activated.
Table 460. SPI pin description
Pin
Name
SCK
SSEL
MISO
MOSI
Type
Input/
Output
Input
Input/
Output
Input/
Output
Pin Description
Serial Clock. The SPI is a clock signal used to synchronize the transfer of data
across the SPI interface. The SPI is always driven by the master and received
by the slave. The clock is programmable to be active high or active low. The SPI
is only active during a data transfer. Any other time, it is either in its inactive
state, or tri-stated.
Slave Select. The SPI slave select signal is an active low signal that indicates
which slave is currently selected to participate in a data transfer. Each slave has
its own unique slave select signal input. The SSEL must be low before data
transactions begin and normally stays low for the duration of the transaction. If
the SSEL signal goes high any time during a data transfer, the transfer is
considered to be aborted. In this event, the slave returns to idle, and any data
that was received is thrown away. There are no other indications of this
exception. This signal is not directly driven by the master. It could be driven by a
simple general purpose I/O under software control.
On the LPC2400 (unlike earlier NXP ARM devices) the SSEL pin can be used
for a different function when the SPI interface is only used in Master mode. For
example, pin hosting the SSEL function can be configured as an output digital
GPIO pin and used to select one of the SPI slaves.
Master In Slave Out. The MISO signal is a unidirectional signal used to transfer
serial data from the slave to the master. When a device is a slave, serial data is
output on this signal. When a device is a master, serial data is input on this
signal. When a slave device is not selected, the slave drives the signal high
impedance.
Master Out Slave In. The MOSI signal is a unidirectional signal used to transfer
serial data from the master to the slave. When a device is a master, serial data
is output on this signal. When a device is a slave, serial data is input on this
signal.
Rev. 04 — 26 August 2009
Chapter 19: LPC24XX SPI
UM10237
© NXP B.V. 2009. All rights reserved.
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