LPC2458FET180,551 NXP Semiconductors, LPC2458FET180,551 Datasheet - Page 276

• 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

NXP Semiconductors
UM10237_4
User manual
9.21 Reset
The Ethernet block has a hard reset input which is connected to the chip reset, as well as
several soft resets which can be activated by setting the appropriate bit(s) in registers. All
registers in the Ethernet block have a value of 0 after a hard reset, unless otherwise
specified.
Hard reset
After a hard reset, all registers will be set to their default value.
Soft reset
Parts of the Ethernet block can be soft reset by setting bits in the Command register and
the MAC1 configuration register.The MAC1 register has six different reset bits:
The above reset bits must be cleared by software.
The Command register has three different reset bits:
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SOFT RESET: Setting this bit will put all modules in the MAC in reset, except for the
MAC registers (at addresses 0x000 to 0x0FC). The value of the soft reset after a
hardware reset assertion is 1, i.e. the soft reset needs to be cleared after a hardware
reset.
SIMULATION RESET: Resets the random number generator in the Transmit Function.
The value after a hardware reset assertion is 0.
RESET MCS/Rx: Setting this bit will reset the MAC Control Sublayer (pause frame
logic) and the receive function in the MAC. The value after a hardware reset assertion
is 0.
RESET Rx: Setting this bit will reset the receive function in the MAC. The value after a
hardware reset assertion is 0.
RESET MCS/Tx: Setting this bit will reset the MAC Control Sublayer (pause frame
logic) and the transmit function in the MAC. The value after a hardware reset
assertion is 0.
RESET Tx: Setting this bit will reset the transmit function of the MAC. The value after
a hardware reset assertion is 0.
TxReset: Writing a ‘1’ to the TxReset bit will reset the transmit datapath, excluding the
MAC portions, including all (read-only) registers in the transmit datapath, as well as
the TxProduceIndex register in the host registers module. A soft reset of the transmit
datapath will abort all AHB transactions of the transmit datapath. The reset bit will be
cleared autonomously by the Ethernet block. A soft reset of the Tx datapath will clear
the TxStatus bit in the Status register.
RxReset: Writing a ‘1’ to the RxReset bit will reset the receive datapath, excluding the
MAC portions, including all (read-only) registers in the receive datapath, as well as the
RxConsumeIndex register in the host registers module. A soft reset of the receive
datapath will abort all AHB transactions of the receive datapath. The reset bit will be
cleared autonomously by the Ethernet block. A soft reset of the Rx datapath will clear
the RxStatus bit in the Status register.
Rev. 04 — 26 August 2009
Chapter 11: LPC24XX Ethernet
UM10237
© NXP B.V. 2009. All rights reserved.
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