Datasheet > PPXS2005VLU80R

PPXS2005VLU80R

更新时间： 2024-10-28 11:59:23

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		微控制器
页数	文件大小	规格书
130页	778K
描述
PXD20 Microcontroller

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PPXS2005VLU80R 数据手册

Overview

— 208 LQFP, 0.5 mm pitch, 28 mm  28 mm outline

— 416 TEPBGA, 1mm ball pitch, 27 mm  27 mm outline

1.4

Feature details

1.4.1

Low-power operation

The PXD20 is designed for optimized low-power operation and dynamic power management of the CPU and peripherals.

Power management features include software-controlled clock gating of peripherals and multiple power domains to minimize

leakage in low-power modes.

There are three low-power modes:

•

STANDBY

STOP

HALT

and five dynamic power modes — RUN[0..3] and DRUN. All low-power modes use clock gating to halt the clock for all or part

of the device.

STANDBY mode turns off the power to the majority of the chip to offer the lowest power consumption mode.

The device can be awakened from STANDBY mode via from any of up to 23 I/O pins, a reset or from a periodic wake-up using

a low power oscillator. If required, it is possible to enable the internal 16 MHz oscillator, the external 4–16 MHz oscillator and

the external 32 KHz oscillator.

In STANDBY mode the contents of the CPU, on-chip peripheral registers and potentially some of the volatile memory are lost.

The two possible configurations in STANDBY mode are:

•

The device retains 64 KB of the on-chip SRAM, but the content of the graphics SRAM is lost.

The device retains 8 KB of the on-chip SRAM, but the content of the graphics SRAM is lost.

STOP mode maintains power to the entire device allowing the retention of all on-chip registers and memory, and providing a

faster recovery low power mode than the lowest-power STANDBY mode. There is no need to reconfigure the device before

executing code. The clocks to the CPU and peripherals are halted and can be optionally stopped to the oscillator or PLL at the

expense of a slower start-up time.

STOP is entered from RUN mode only. Wake-up from STOP mode is triggered by an external event or by the internal periodic

wake-up, if enabled.

RUN modes are the main operating modes where the entire device can be powered and clocked and from which most processing

activity is done. Four dynamic RUN modes are supported—RUN0 - RUN3. The ability to configure and select different RUN

modes enables different clocks and power configurations to be supported with respect to each other and to allow switching

between different operating conditions. The necessary peripherals, clock sources, clock speed and system clock prescalers can

be independently configured for each of the four RUN modes of the device.

HALT mode is a reduced activity, low power mode intended for moderate periods of lower processing activity. In this mode the

CPU system clocks are stopped but user-selected peripheral tasks can continue to run. It can be configured to provide more

efficient power management features (switch-off PLL, flash memory, main regulator, etc.) at the cost of longer wake up latency.

The system returns to RUN mode as soon as an event or interrupt is pending.

Table 2 summarizes the operating modes of the PXD20.

PXD20 Microcontroller Data Sheet, Rev. 2

Freescale Semiconductor

Preliminary—Subject to Change Without Notice

1...4 5 678 9 10...130

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