ST10F269Z2QX datasheet(81/161 Pages) STMICROELECTRONICS

tên linh kiện	ST10F269Z2QX

Giải thích chi tiết về linh kiện	16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

PDF	161 Pages

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ST10F269Z2Qx

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The chip select lines of Port 6 have an internal

weak pull-up device. This device is switched on

during reset. This feature is implemented to drive

the chip select lines high during reset in order to

avoid multiple chip selection.

After reset the CS function must be used, if

selected so. In this case there is no possibility to

program any port latches before. Thus the

alternate function (CS) is selected automatically in

this case.

Note: The open drain output option can only be

selected via software earliest during the

initialization routine; at least signal CS0

will be in push/pull output driver mode

directly after reset.

Figure 37 : Block Diagram of Port 6 Pins with an Alternate Output Function

MUX

"0"

Open Drain

Latch

Write ODP6.y

Read ODP6.y

Direction

Latch

Write DP6.y

Read DP6.y

MUX

Input

Latch

Clock

P6.y

Output

Buffer

Port Output

Latch

Read P6.y

Write DP6.y

Alternate

Data

Output

MUX

"1"

MUX

Alternate

Function

Enable

y = (0...4, 6, 7)

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