ST10F280_12 datasheet(142/239 Pages) STMICROELECTRONICS

tên linh kiện	ST10F280

Giải thích chi tiết về linh kiện	16-bit MCU with MAC unit, 512 Kbyte Flash memory and 18 Kbyte RAM

PDF	239 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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142 / 239 page

A/D converter

ST10F280

142/239

Doc ID 8673 Rev. 3

Due to the multiplexed inputs, at a time, the ADC exclusively converts the Port5 inputs or the

XPort10 inputs. If one "y" channel has to be used continuously in injection mode, it must be

externally hardware connected to the Port5.y and XPort10.y inputs.

The XTIMER peripheral is enabled by setting XPEN bit 2 of the SYSCON register and bit 3

of the new XPERCON register.

13.3.1

Main features

The XTIMER features are :

●

16 bits linear timer / 4 bits exponential prescaler

●

Counting between 16 bits “start value” and 16 bits “end value”

●

Counting period between 4 cycles and 2**33 cycles (100 ns and 214s using 40MHz

CPU clock)

●

1 trigger ouput (XADCINJ)

●

Programmable functions :

–

Internal clock XCLK is derivated from the CPU clock and has the same period

–

Up counting / down counting

–

Reload enable

–

Continue / stop modes

●

4 memory mapped registers :

–

Control / prescaler

–

Start value

–End value

–

Current value

Table 26.

The different counting Modes

TLE TCS TCVR(n) = TEVR

TUD

TEN

TCVR(n+1)

comments

TCVR(n)

Timer disable

Stop

TCVR(n)-1

Decrement

Decrement (Continue)

TCVR(n)+1

Increment

Increment (Continue)

TSVR

Load

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