LPC1837FET256,551 NXP Semiconductors, LPC1837FET256,551 Datasheet - Page 918

• Manufacturer Part Number: LPC1837FET256,551
• Description: Microcontrollers (MCU) 32BIT ARM CORTEX-M3 MCU 136KB SRAM
• Manufacturer: NXP Semiconductors
• Series: LPC18xxr

Specifications of LPC1837FET256,551

• Core: ARM Cortex M3
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, SD/MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-LBGA
• Lead Free Status / Rohs Status: Details
• Other names: 935293795551

NXP Semiconductors
<Document ID>
User manual
40.8.2 Set Baud Rate <Baud Rate> <stop bit>
40.8.3 Echo <setting>
40.8.4 Write to RAM <start address> <number of bytes>
Table 845. ISP Set Baud Rate command
Table 846. Correlation between possible ISP baudrates and CCLK frequency (in MHz)
[1]
Table 847. ISP Echo command
The host should send the data only after receiving the CMD_SUCCESS return code. The
host should send the check-sum after transmitting 20 UU-encoded lines. The checksum is
generated by adding raw data (before UU-encoding) bytes and is reset after transmitting
20 UU-encoded lines. The length of any UU-encoded line should not exceed
61 characters (bytes) i.e. it can hold 45 data bytes. When the data fits in less than
20 UU-encoded lines then the check-sum should be of the actual number of bytes sent.
Command
Input
Return Code
Description
Example
ISP Baudrate .vs.
CCLK Frequency
10.0000
11.0592
12.2880
14.7456
15.3600
18.4320
19.6608
24.5760
25.0000
Command
Input
Return Code
Description
Example
ISP entry after reset uses the on chip IRC and PLL to run the device at CCLK = 14.748 MHz
[1]
B
Baud Rate: 9600 | 19200 | 38400 | 57600 | 115200 | 230400
Stop bit: 1 | 2
CMD_SUCCESS |
INVALID_BAUD_RATE |
INVALID_STOP_BIT |
PARAM_ERROR
This command is used to change the baud rate. The new baud rate is effective
after the command handler sends the CMD_SUCCESS return code.
"B 57600 1<CR><LF>" sets the serial port to baud rate 57600 bps and 1 stop bit.
A
Setting: ON = 1 | OFF = 0
CMD_SUCCESS |
PARAM_ERROR
The default setting for echo command is ON. When ON the ISP command handler
sends the received serial data back to the host.
"A 0<CR><LF>" turns echo off.
All information provided in this document is subject to legal disclaimers.
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Rev. 00.13 — 20 July 2011
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Chapter 40: LPC18xx flash programming interface
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UM10430
© NXP B.V. 2011. All rights reserved.
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