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SPEAR1340 bảng dữ liệu(PDF) 38 Page - STMicroelectronics

tên linh kiện SPEAR1340
Giải thích chi tiết về linh kiện  Dual-core Cortex A9 HMI embedded MPU
PDF  200 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPEAR1340 bảng dữ liệu(HTML) 38 Page - STMicroelectronics

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Device functions
SPEAr1340
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Doc ID 023063 Rev 4
2.38
One-time programmable antifuse (OTP)
The OTP block is an array of one-time programmable antifuse memory cells. All OTP banks
feature an embedded charge pump which provides internally the high voltage necessary for
antifuse programming sessions. Therefore, it is not necessary to use an additional high
voltage pad at the chip interface. OTP is software programmable, so no dedicated
programming interface is needed at chip level.
Main features:
OTP embeds three 255-bit banks, with these features:
●
BANK 1: 255-bit data bank with write-protect mechanism
●
BANK 2: 255-bit data bank with write-protect mechanism
●
BANK M: 255-bit bank, logically partitioned as follows:
–
32 bits (16 + redundancy) used for BANK1/BANK2 write protection
–
213 bits BootROM controlled
–
2 bits reserved
–
2 bits reserved for disabling TEST access to OTP
–
2 bits reserved for disabling JTAG access
–
4 bits BootROM controlled



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