STLUX385ATR datasheet(57/99 Pages) STMICROELECTRONICS

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STLUX385A

Option bytes

nUBC (UBC user boot code reg. protection)

nUBC: not(UBC) EMC byte protection.

GENCFG (general configuration reg.)

Bit 0:

EN_COLD_CFG enables IC cold configuration through the option byte register

AFR_IOMXP0,P1:

0: default case, the IC multifunction signal configuration is performed by the

miscellaneous registers MSC_IOMXP0 and MSC_IOMXP1 (warm configuration).

1: enables the multifunction signal configuration through the option byte registers

AFR_IOMXP0 and AFR_IOMXP1 (cold configuration).

Bit 1:

COMP1_2 enables the complete backward compatibility with the previous device

implementations. In detail, below features are inhibited:

Multiplexing of I

C interface on GPIO[5:4], GPIO[1:0], DIGIN[5:4]

Multiplexing of UART interface on GPIO[5:4]

Port0 and Port2 interrupt mask feature (polling)

DIGIN[5:0] pull-up disabling feature

DALI noise rejection filter

Note:

This bit setting ensures the full device compatibility with the previous device model

(STLUX385).

Offset: 0x004802

Default value: 0xFF

6543

210

nUBC [7:0]

r/w

Offset: 0x004803

Default value: 0xFF

65432

Rst_PWM [5:0]

COMP1_2

EN_COLD_C

r/w

STLUX385ATR 数据表(PDF) 57 Page - STMicroelectronics

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