LPC1769FBD100,551 NXP Semiconductors, LPC1769FBD100,551 Datasheet - Page 640
LPC1769FBD100,551
Manufacturer Part Number
LPC1769FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.OM11043.pdf
(79 pages)
2.LPC1767FBD100551.pdf
(2 pages)
3.LPC1767FBD100551.pdf
(840 pages)
4.LPC1769FBD100551.pdf
(66 pages)
Specifications of LPC1769FBD100,551
Program Memory Type
FLASH
Program Memory Size
512KB (512K x 8)
Package / Case
100-LQFP
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
120MHz
Connectivity
CAN, Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
LPC17
Core
ARM Cortex M3
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
Ethernet, USB, OTG, CAN
Maximum Clock Frequency
120 MHz
Number Of Programmable I/os
70
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, MCB1760, MCB1760U, MCB1760UME
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 8 Channel
On-chip Dac
10 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-4966
935290522551
935290522551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1769FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
UM10360
User manual
32.10.2
Algorithm and procedure for signature generation
Signature generation
A signature can be generated for any part of the flash contents. The address range to be
used for signature generation is defined by writing the start address to the FMSSTART
register, and the stop address to the FMSSTOP register.
The signature generation is started by writing a ‘1’ to FMSSTOP.MISR_START. Starting
the signature generation is typically combined with defining the stop address, which is
done in another field FMSSTOP.FMSSTOP of the same register.
The time that the signature generation takes is proportional to the address range for which
the signature is generated. Reading of the flash memory for signature generation uses a
self-timed read mechanism and does not depend on any configurable timing settings for
the flash. A safe estimation for the duration of the signature generation is:
When signature generation is triggered via software, the duration is in AHB clock cycles,
and tcy is the time in ns for one AHB clock. The SIG_DONE bit in FMSTAT can be polled
by software to determine when signature generation is complete.
If signature generation is triggered via JTAG, the duration is in JTAG tck cycles, and tcy is
the time in ns for one JTAG clock. Polling the SIG_DONE bit in FMSTAT is not possible in
this case.
After signature generation, a 128-bit signature can be read from the FMSW0 to FMSW3
registers. The 128-bit signature reflects the corrected data read from the flash. The 128-bit
signature reflects flash parity bits and check bit values.
Content verification
The signature as it is read from the FMSW0 to FMSW3 registers must be equal to the
reference signature. The algorithms to derive the reference signature is given in
Figure
Fig 139. Algorithm for generating a 128 bit signature
Duration = int( (60 / tcy) + 3 ) x (FMSSTOP - FMSSTART + 1)
sign = 0
FOR address = FMSTART.FMSTART TO FMSTOP.FMSTOP
{
}
signature128 = sign
139.
FOR i = 0 TO 126
sign = nextSign
All information provided in this document is subject to legal disclaimers.
nextSign[i] = f_Q[address][i] XOR sign[i+1]
nextSign[127] = f_Q[address][127] XOR sign[0] XOR sign[2] XOR
Chapter 32: LPC17xx Flash memory interface and programming
Rev. 2 — 19 August 2010
sign[27] XOR sign[29]
UM10360
© NXP B.V. 2010. All rights reserved.
640 of 840
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