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STLUX Datasheet(PDF) 69 Page - STMicroelectronics

Part # STLUX
Description  Digital controllers for lighting and power conversion applications with up to 6 programmable PWM generators, 96 MHz PLL, DALI
PDF  126 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STLUX Datasheet(HTML) 69 Page - STMicroelectronics

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STLUX
Option bytes
126
10.2
Option byte register description
The option byte registers are mapped inside the E²PROM data region.
ROP (memory readout protection register)
Bit 7 - 0:
ROP [7:0] memory readout protection:
0xAA: enable readout protection. When readout protection is enabled, reading or
modifying the Flash program memory and DATA area in ICP mode (using the SWIM
interface) is forbidden, whatever the write protection settings are.
UBC (UBC user boot code register)
Bit 7 - 0:
UBC [7:0] user boot code write protection memory size: 0x00: no UBC, no Flash
memory write-protection
0x01: pages 0 to 1 defined as UBC; 1 Kbyte memory write-protected (0x00.8000-
0x00.83FF)
0x02: pages 0 to 3 defined as UBC; 2 Kbyte memory write-protected (0x00.8000-
0x00.87FF)
0x03: pages 0 to 4 defined as UBC; 2.5 Kbyte memory write-protected (0x00.8000-
0x00.89FF)
... (512 byte every page)
0x3E: pages 0 to 63 defined as UBC; 32 Kbyte memory write-protected (0x00.8000-
0x00.FFFF)
Other values: reserved.
Table 41. ROP (memory readout protection register)
Offset: 0x004800
Default value: 0x00
7
6
5
432
1
0
ROP [7:0]
r/w
Table 42. UBC (UBC user boot code register)
Offset: 0x004801
Default value: 0x00
76
5
4
3
2
1
0
UBC [7:0]
r/w



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