Z8F021ASH020SC datasheet(50/276 Pages) ZILOG

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PS022815-0206

Low-Power Modes

Z8 Encore! XP® 4K Series

Product Specification

surements on ANA0 (the LPO output). This bit enables the amplifier even in STOP mode.

If the amplifier is not required in STOP mode, disable it. Failure to perform this results in

STOP mode currents greater than specified.

This register is only reset during a power-on reset sequence. Other system reset events do

not affect it.

LPO — Low-Power Operational Amplifier Disable

0 = LPO is enabled (this applies even in STOP mode).

1 = LPO is disabled.

Reserved—Must be 0.

VBO—Voltage Brown-Out Detector Disable

This bit and the VBO_AO Flash option bit must both enable the VBO for the VBO to be

active.

0 = VBO Enabled

1 = VBO Disabled

TEMP—Temperature Sensor Disable

0 = Temperature Sensor Enabled

1 = Temperature Sensor Disabled

ADC—Analog-to-Digital Converter Disable

0 = Analog-to-Digital Converter Enabled

1 = Analog-to-Digital Converter Disabled

COMP—Comparator Disable

0 = Comparator is Enabled

1 = Comparator is Disabled

Reserved—Must be 0.

Asserting any power control bit will disable the targeted block, regardless of any enable

bits contained in the target block’s control registers.

Table 13. Power Control Register 0 (PWRCTL0)

BITS

FIELD

LPO

Reserved

VBO

TEMP

ADC

COMP

Reserved

RESET

000

R/W

R/WR/W

ADDR

F80H

Note:

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