參數(shù)資料
型號: P95020NQG8
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 電源管理
英文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC132
封裝: 10 X 10 MM, 0.85 MM HEIGHT, QFN-132
文件頁數(shù): 71/169頁
文件大?。?/td> 4297K
代理商: P95020NQG8
IDTP95020
Product Datasheet
September 2, 2011 Revision 1.3 Final
162
2011 Integrated Device Technology, Inc.
EMBUP – EMBEDDED MICROCONTROLLER SUBSYSTEM AND
I/O
Features
Power Up/Down Sequencing
- Eliminates the need for the Application Processor
(AP) or another external controller (PLD/PIC) to
perform this function.
- Improves system power consumption by
offloading this task from the higher power
application processor.
General monitoring and action based on external or
internal events such as:
- ADC Result
- Power Supply Fault Monitoring
- Other System Interrupts
Description
The Embedded Microcontroller (EMBUP) in the
IDTP95020 can operate in one of two modes: mixed mode
or stand-alone mode. In mixed mode, both the internal
microcontroller and an external Application Processor (AP)
can also control some or all of the IDTP95020 subsystems.
In stand-alone mode, the EMBUP completely offloads
power sequencing and other functions from the application
processor so that the processor can perform other
functions or spend more time in sleep mode.
The microcontroller core runs at 8 MHz with a 1.8V power
supply and can be shut off if required. It interfaces
through VSYS level signals (3.0 to 5.5V) and supports the
following functions:
-
Device initialization
-
Power sequencing for power state transitioning
-
Keyboard scanning
-
Enable/Disable of all Interfaces and Sub-Modules
EMBUP – Overview
Table 273. EMBUP Overview
MODULE
INTERRUPTS
INTERRUPTS USAGE
ACCM
Message signaling
1
Internal /external processor communication
CHGR
Adapter In/ Charging state change
3
Charger state detection
CLASSD-Driver Fault
1
DCDC
Fault
1
GPTIMER
General purpose timer, Watchdog timer 2
LDO
Fault
1
GPIO
GPIO/SW_DET
10/2
System power on/off
RTC
Alarm-1, Alarm-2
2
TSC
Pendown
1
TSC
Die temperature high,
Battery voltage low,
VSYS voltage low
3
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