ADP3500

REV.PrP 2/6/02

- 23 -

1.

“X” means a status of LDO depends on other conditions.

Table 4b. LDO Control Event Table

Event

LDO1a LDO1b LDO2a LDO2b LDO3a LDO3b LDO4

REFO

LDO5

LDO6a LDO6b LDO7

LDO8

LDO9 LDO10 LDO11

Baseband VDD

Baseband

AVDD

Coin cell

Audio

REFO

Vibrator

Baseband Core

Rx1

Tx

Rx2

RF

Option

Option

POWER ON

(Note 2)

ON

ON

ON

ON

ON

ON

ON

TCXO_ON

(Note 3)

ON/

OFF

ON/

OFF

ON/

OFF

ON/

OFF

SLEEP-

(Note 4)

ON/

OFF

ON/

OFF

RESETIN-

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

“ALLOFF” bit

goes “H”

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

“PWROFF” bit

goes “H”

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

Notes

1. This table only indicate the change of status caused by an event. Blank cells means “no change” and keep previous status

2. Power ON Event: Indicating a status just after the power ON event. After the event, a status of LDO1a, 2a, 3a, and

LDO6a are changed by TCXO_ON signal.

3. TCXO_ON: Hardware control, change all Main-LDO’ ON/OFF status.

4. SLEEP-: The LDO7 and LDO9 are able to be controlled by software if SLEEP=”H” level. If SLEEP- goes “L”, these

LDOs are turned OFF immediately.

Table 4c. Software Controllability of LDOs

LDO1a LDO1b LDO2a LDO2b LDO3a LDO3b LDO4

REFO

LDO5

LDO6a LDO6b LDO7

LDO8

LDO9 LDO10 LDO11

LDO description

Baseband VDD

Baseband

AVDD

Coin cell

Audio

REFO

Vibrator

Baseband Core

Rx1

Tx

Rx2

RF

Option

Option

Software Turn

ON

√√

√

√

(Note1)

√

√

(Note1)

√√

Software Turn

OFF

√

√√√√

√√

√

√√√

√√√√

Note

1. LDO7 and LDO9 have a gate with SLEEP-. If SLEEP- is in “L” (active) status, user cannot control and both LDOs are kept

to “OFF” status. User may want to use this function as immediate control to get OFF status by using SLEEP- hardware control

while set register “1” to the LDO control register.

2.9 RTC BLOCK

The Calendar registers are set through serial interface.

2.9.1 Function

•

RTC counter using binary

•

Reading out and writing setting s of Year, Month, Day, Week, Hour, Minute, and second data.

•

Leap year controls, Number of days in a month control

•

Alarm function (Weak, Hour, Minute)

•

Periodic Interrupt function - 2Hz, 1Hz, 1/60Hz, 1/3600Hz, Each month (First day of each month)

•

Protection of wrong data readout during RTC data update.

PRELIMINARY TECHNICAL DATA