STMicroelectronics /STM32U535 /RCC /RCC_PLL2DIVR

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Interpret as RCC_PLL2DIVR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0PLL2N0 (B_0x0)PLL2P0 (B_0x0)PLL2Q0 (B_0x0)PLL2R

PLL2Q=B_0x0, PLL2R=B_0x0, PLL2P=B_0x0

Description

RCC PLL2 dividers configuration register

Fields

PLL2N

Multiplication factor for PLL2 VCO This bitfield is set and reset by software to control the multiplication factor of the VCO. It can be written only when the PLL is disabled (PLL2ON = 0 and PLL2RDY = 0). … … Others: reserved VCO output frequency = Fref2_ck x PLL2N, when fractional value 0 has been loaded in PLL2FRACN, with: PLL2N between 4 and 512 input frequency Fref2_ck between 1MHz and 16MHz

3 (B_0x003): PLL2N = 4

4 (B_0x004): PLL2N = 5

5 (B_0x005): PLL2N = 6

128 (B_0x080): PLL2N = 129 (default after reset)

511 (B_0x1FF): PLL2N = 512

PLL2P

PLL2 DIVP division factor This bitfield is set and reset by software to control the frequency of the pll2_p_ck clock. It can be written only when the PLL2 is disabled (PLL2ON = 0 and PLL2RDY = 0). …

0 (B_0x0): pll2_p_ck = vco2_ck

1 (B_0x1): pll2_p_ck = vco2_ck / 2 (default after reset)

2 (B_0x2): pll2_p_ck = vco2_ck / 3

3 (B_0x3): pll2_p_ck = vco2_ck / 4

127 (B_0x7F): pll2_p_ck = vco2_ck / 128

PLL2Q

PLL2 DIVQ division factor This bitfield is set and reset by software to control the frequency of the pll2_q_ck clock. It can be written only when the PLL2 is disabled (PLL2ON = 0 and PLL2RDY = 0). …

0 (B_0x0): pll2_q_ck = vco2_ck

1 (B_0x1): pll2_q_ck = vco2_ck / 2 (default after reset)

2 (B_0x2): pll2_q_ck = vco2_ck / 3

3 (B_0x3): pll2_q_ck = vco2_ck / 4

127 (B_0x7F): pll2_q_ck = vco2_ck / 128

PLL2R

PLL2 DIVR division factor This bitfield is set and reset by software to control the frequency of the pll2_r_ck clock. It can be written only when the PLL2 is disabled (PLL2ON = 0 and PLL2RDY = 0). …

0 (B_0x0): pll2_r_ck = vco2_ck

1 (B_0x1): pll2_r_ck = vco2_ck / 2 (default after reset)

2 (B_0x2): pll2_r_ck = vco2_ck / 3

3 (B_0x3): pll2_r_ck = vco2_ck / 4

127 (B_0x7F): pll2_r_ck = vco2_ck / 128

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