EM357-RTR Datasheet, PDF (32/241 Pages) Silicon Laboratories – High-Performance, Integrated ZigBee/802.15.4 System-on-Chip

Table 5.2. Option Byte Write Protection Bit Map
Option Byte
Bit
Notes
Option Byte 0 bit [7:0] Read protection of all flash (MFB, FIB, CIB)
Option Byte 1 bit [7:0] Reserved for Silicon Labs use
Option Byte 2 bit [7:0] Available for customer use
Option Byte 3 bit [7:0] Available for customer use
Option Byte 4 bit [0] Write protection of address range 0x08000000 – 0x08001FFF
bit [1] Write protection of address range 0x08002000 – 0x08003FFF
bit [2] Write protection of address range 0x08004000 – 0x08005FFF
bit [3] Write protection of address range 0x08006000 – 0x08007FFF
bit [4] Write protection of address range 0x08008000 – 0x08009FFF
bit [5] Write protection of address range 0x0800A000 – 0x0800BFFF
bit [6] Write protection of address range 0x0800C000 – 0x0800DFFF
bit [7] Write protection of address range 0x0800E000 – 0x0800FFFF
Option Byte 5 bit [0] Write protection of address range 0x08010000 – 0x08011FFF
bit [1] Write protection of address range 0x08012000 – 0x08013FFF
bit [2] Write protection of address range 0x08014000 – 0x08015FFF
bit [3] Write protection of address range 0x08016000 – 0x08017FFF
bit [4] Write protection of address range 0x08018000 – 0x08019FFF
bit [5] Write protection of address range 0x0801A000 – 0x0801BFFF
bit [6] Write protection of address range 0x0801C000 – 0x0801DFFF
Option Byte 6^*
bit [7]
bit [0]
Write protection of address range 0x0801E000 – 0x0801FFFF
Write protection of address range 0x08020000 – 0x08021FFF
bit [1] Write protection of address range 0x08022000 – 0x08023FFF
bit [2] Write protection of address range 0x08024000 – 0x08025FFF
bit [3] Write protection of address range 0x08026000 – 0x08027FFF
bit [4] Write protection of address range 0x08028000 – 0x08029FFF
bit [5] Write protection of address range 0x0802A000 – 0x0802BFFF
bit [6] Write protection of address range 0x0802C000 – 0x0802DFFF
bit [7] Write protection of address range 0x0802E000 – 0x0802FFFF
Option Byte 7 bit [7:0] Reserved for Silicon Labs use
*Note: Option byte 6 is reserved/unused in the EM351 due to the smaller flash size.
32
Rev 1.3