STUW81300 datasheet(47/63 Pages) STMICROELECTRONICS

47 / 63 page

DS11314 Rev 7

47/63

STuW81300

Circuit description

ST8 Register

Address:

STuW81300BaseAddress + 0x08

Type:

R/W

Description:

LDO Voltage Regulator settings

765

4321

RW RW RW RW RW RW RW RW RW

RW RW

[26] PD_RF2_DISABLE: at ‘1’ disable the hardware power down function of the pin PD_RF2 (pin #6) thus

allowing the pin PD_RF1 (pin #5) to control the power down status of both RF output stages

[25] RESERVED: must be set to ‘0’

[24] RESERVED: must be set to ‘0’

[23] RESERVED: must be set to ‘0’

[22] RESERVED: must be set to ‘0’

[21] RESERVED: must be set to ‘0’

[20] RESERVED: must be set to ‘0’

[19] REG_OCP_DIS: for test purposes only; must be set to ‘0’ (at ‘1’ disable the over-current protection of

LDO voltage regulators except DIG regulator)

[18] REG_DIG_PD: DIGITAL Regulator power down for test purposes only. Must be set to ‘0’

[17:16] REG_DIG_VOUT: DIGITAL regulator output voltage set

00: (0) 2.6 V (Default)

01: (1) 2.3 V (for test purposes only)

10: (2) 2.4 V (for test purposes only)

11: (3) 2.5 V (for test purposes only)

[15] RESERVED: must be set to ‘0’

[14] REG_REF_PD: REFERENCE CLOCK Regulator power down for test purposes only. Must be set to ‘0’

[13:12] REG_REF_VOUT: REFERENCE CLOCK Regulator output voltage set

00: (0) 2.6 V (default)

01: (1) 2.5 V (for test purposes only)

10: (2) 2.7 V (for test purposes only)

11: (3) 2.8 V (for test purposes only)

[11] RESERVED: must be set to ‘0’

[10] REG_RF_PD: RF Output section Regulator power down for test purposes only. Must be set to ‘0’

STUW81300 Datasheet(PDF) 47 Page - STMicroelectronics