NXP Semiconductors LPC4357FET256 BGA(256) Device

Adapters for Automated Programmers

Adapters for Manual Programmers

Adapters for Engineering Programmers

Last Updated: 05/18/2023

IMPORTANT: Microcontroller with Flash Memory.Data Pattern addresses [00000h-7FFFFh] map to Flash Bank A on the devicewhich maps to 1A000000h-1A07FFFFh in the device memory map.Data Pattern addresses [80000h-FFFFFh] map to Flash Bank B on the devicewhich maps to 1B000000h-1B07FFFFh in the device memory map.Auto-run code in Flash after reset available under Device Configureprograms the 2’s complement of the check-sum of the remaining interrupt vectors atthe Data Pattern address [0001Ch] for Flash Bank A (address 1A00001Ch in the device memory map)and the Data Pattern address [8001Ch] for Flash Bank B (address 1B00001Ch in the device memory map).Code Read Protection available under Device Configure is enabled by programmingthe Data Pattern address [002FCh] for Flash Bank A (address 1A0002FCh in the device memory map)and the Data Pattern address [802FCh] for Flash Bank B (address 1B0002FCh in the device memory map).It works in conjunction with the following values (Little Endian Byte Format):CRP1 is enabled if value 12345678h (305419896 Decimal) is programmed.Access to chip via the JTAG pins is disabled.The following ISP commands are also disabled: Read Memory Go and Compare.The Copy RAM to Flash command cannot write to Sector 0.The Erase Sectors command can erase any sector individually except sector 0or it can erase all sectors at once.Activate flash bank is not allowed.CRP2 is enabled if value 87654321h (2271560481 Decimal) is programmed.The restrictions for CRP1 apply plus the following.The following commands are disabled: Write to RAM and Copy RAM to Flash.Also the Erase command can only erase all sectors at once.CRP3 is enabled if value 43218765h (1126270821 Decimal) is programmed.The restrictions for CRP2 apply plus the following.ISP entry by pulling P2_7 LOW is disabled if valid user code is present in flash sector 0.NO_ISP is enabled if value 4E697370h (1315533680 Decimal) is programmed.This disables ISP requests using the P2_7 pin.Using Code Read Protection with Auto-run code in Flash after resetfor the same or both Flash banks will cause the device to become inaccessibleto the programmer.