LPC1114FHN33/203,5 NXP Semiconductors, LPC1114FHN33/203,5 Datasheet - Page 441

• Manufacturer Part Number: LPC1114FHN33/203,5
• Description: ARM Microcontrollers - MCU Cortex-M0 32 kB Fl 8 kB SRAM
• Manufacturer: NXP Semiconductors

Specifications of LPC1114FHN33/203,5

• Rohs: yes
• Core: ARM Cortex M0
• Processor Series: LPC1114
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 8 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 1.8 V to 3.6 V
• Operating Temperature Range: - 65 C to + 150 C
• Package / Case: HVQFN-33
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 260

NXP Semiconductors
UM10398
User manual
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.
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 92. Algorithm for generating a 128-bit signature
int128 signature = 0
int128 nextSignature
FOR address = flashpage 0 TO address = flashpage max
{
}
return signature
92.
FOR i = 0 TO 126 {
nextSignature[127] = flashword[127] XOR signature[0] XOR signature[2]
signature = nextSignature
All information provided in this document is subject to legal disclaimers.
nextSignature[i] = flashword[i] XOR signature[i+1]}
XOR signature[27] XOR signature[29]
Rev. 12 — 24 September 2012
Chapter 26: LPC111x/LPC11Cxx Flash programming firmware
UM10398
© NXP B.V. 2012. All rights reserved.
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