ATmega169P datasheet(137/393 Pages) ATMEL

номер детали	ATmega169P

подробное описание детали	8-bit Microcontroller with 16K Bytes In-System Programmable Flash

PDF	393 Pages

Scroll/Zoom	100%

производитель	ATMEL [ATMEL Corporation]

домашняя страница	http://www.atmel.com

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137 / 393 page

137

8018N–AVR–08/09

ATmega169P

16.4

16.4.1

GTCCR – General Timer/Counter Control Register

• Bit 7 – TSM: Timer/Counter Synchronization Mode

Writing the TSM bit to one activates the Timer/Counter Synchronization mode. In this mode, the

value that is written to the PSR2 and PSR10 bits is kept, hence keeping the corresponding pres-

caler reset signals asserted. This ensures that the corresponding Timer/Counters are halted and

can be configured to the same value without the risk of one of them advancing during configura-

tion. When the TSM bit is written to zero, the PSR2 and PSR10 bits are cleared by hardware,

and the Timer/Counters start counting simultaneously.

• Bit 0 – PSR10: Prescaler Reset Timer/Counter1 and Timer/Counter0

When this bit is one, Timer/Counter1 and Timer/Counter0 prescaler will be Reset. This bit is nor-

mally cleared immediately by hardware, except if the TSM bit is set. Note that Timer/Counter1

and Timer/Counter0 share the same prescaler and a reset of this prescaler will affect both

timers.

Bit

0x23 (0x43)

TSM

–

PSR2

PSR10

GTCCR

Read/Write

R/W

Initial Value

ATmega169P датащи(PDF) 137 Page - ATMEL Corporation