TTP259-ASFN datasheet(17/81 Pages) TONTEK

Nome de Peças	TTP259-ASFN

Descrição Electrónicos	Preliminary

PDF	81 Pages

Scroll/Zoom	100%

Fabricante Electrônico	TONTEK [Tontek Design Technology]

Página de início	http://www.tontek.com.tw

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17 / 81 page

Preliminary

TTP259

TonTouch

2015/05/25

Page 17 of 81

Ver: 1.1

S-4: Power saving mode (Stop mode and Sleep mode)

The CPU enters stop or sleep mode is operated by writing CPU power

saving control register (PS). During the power saving mode, CPU holds the

internal status of the system. In stop mode, the oscillator clocks will be

stopped and system need a warm-up time for the stability of system clock

running after wake up.

S-5: MCU System Operating Mode

The MCU has 4 operating modes, including high speed operation, low

speed operation, sleep and stop modes. After power on reset, the MCU will

go into high speed operation mode automatically. After wake up from

sleep mode, the MCU will resume the last operation mode.

STOP mode

OSCH off & OSCL off

High speed operating

mode

OSCH on & OSCL on

SLEEP mode

CPU stop

RESET

Low speed operating

mode

OSCH off & OSCL on

STOP/

wake up

STOP/

wake up

Reset

Reset release

SLEEP/

wake up

SLEEP/

wake up

H/L

Figure: System Operation State Diagram

TTP259-ASFN Folha de dados(PDF) 17 Page - Tontek Design Technology