HC705V8GRSSLASHD datasheet(91/172 Pages) NXP

tên linh kiện	HC705V8GRS/D

Giải thích chi tiết về linh kiện	The Motorola MC68HC705V8 microcontroller is a custom HC05 based MCU featuring a Message Data Link Controller (MDLC) module and on-chip power regulation.

PDF	172 Pages

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nhà sản xuất	NXP [NXP Semiconductors]

Trang chủ	http://www.nxp.com

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SECTION 11: 16-BIT TIMER

Page 80

MC68HC705V8 Specification Rev. 2.1

The counter alternate register at address $1A and $1B contains the same value as the free-

running counter (at address $18 and $19); therefore, this alternate register can be read at

any time without affecting the timer overflow flag in the timer status register.

11.6

TIMER DURING WAIT MODE

The CPU clock halts during the WAIT mode, but the timer remains active if turned on prior

to entering wait mode. If interrupts are enabled, a timer interrupt will cause the processor

to exit the WAIT mode.

11.7

TIMER DURING STOP MODE

In the STOP mode, the timer stops counting and holds the last count value if STOP is exited

by an interrupt. If RESET is used, the counter is forced to $FFFC. During STOP, if the

TIMER is on and at least one valid input capture edge occurs at the TCAP pin, the input

capture detect circuit is armed. This does not set any timer flags nor wake up the MCU, but

when the MCU does wake up, there is an active input capture flag and data from the first

valid edge that occurred during the STOP mode. If RESET is used to exit STOP mode, then

no input capture flag or data remains, even if a valid input capture edge occurred.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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