STLUX Datasheet, PDF (73/126 Pages) STMicroelectronics – Digital controllers for lighting and power conversion applications with up to 6 programmable PWM generators, 96 MHz PLL, DALI

STLUX
Option bytes
nCLKCTL (CKC configuration register protection)
Table 49. nCLKCTL (CKC configuration register protection)
Offset: 0x004808
7
6
nRFU
r
Default value: 0xF6 (factory configuration)
5
4
3
2
nCKAWUSEL1 nEXTCLK nCKAWUSEL0
r/w
r/w
r/w
1
0
nPRSC [1:0]
r/w
nCLKCTL: not (CLKCTL) EMC byte protection.
HSESTAB (HSE clock stabilization register)
Table 50. HSESTAB (HSE clock stabilization register)
Offset: 0x004809
Default value: 0x00
7
6
5
4
3
2
1
0
HSECNT [7:0]
r/w
Bit 7 - 0:
HSECNT [7:0] HSE crystal oscillator stabilization cycles:
0x00: 2048 clock cycles
0xB4: 128 clock cycles
0xD2: 8 clock cycles
0xE1: 0.5 clock cycles.
nHSESTAB (HSE clock stabilization register protection)
Table 51. nHSESTAB (HSE clock stabilization register protection)
Offset: 0x00480A
Default value: 0xFF
7
6
5
4
3
2
1
0
nHSECNT [7:0]
r/w
nHSESTAB: not (HSESTAB) EMC byte protection.
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