JS28F512P30TFA datasheet(42/86 Pages) MICRON

42 / 86 page

P30-65nm

Datasheet

Sept 2012

Order Number: 208042-0

11.3.1

Reading the OTP Registers

The OTP Registers can be read from OTP-RA address. To read the OTP Register, first

issue the Read Device Identifier command at OTP-RA address to place the device in the

Read Device Identifier state (see Section 6.2, “Device Command Bus Cycles” on

page 20). Next, perform a read operation using the address offset corresponding to the

address offsets of the OTP Registers and Lock Registers. OTP Registers and Lock

Registers data is read 16 bits at a time.

11.3.2

Programming the OTP Registers

To program an OTP Register, first issue the OTP Register Program Setup command at

the device base address plus the offset address of the desired OTP Register location

(OTP-RA: see Figure 13, “OTP Register Map” on page 42). Next, write the desired OTP

Bus Cycles” on page 20.

Figure 13: OTP Register Map

0x89

Lock Register 1

15 14 13 12 11 10 9

0x102

0x109

0x8A

0x91

128-bit OTP Register 16

(User-Programmable)

128-bit OTP Register 1

(User-Programmable)

0x88

0x85

64-bit Segment

(User-Programmable)

0x84

0x81

0x80

Lock Register 0

64-bit Segment

(Factory-Programmed)

15 14 13 12 11 10 9

128-Bit OTP Register 0

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