ST10F269Z2QX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST10F269Z2QX

16-BIT MCU WITH MAC UNIT, 256K BYTE FLASH MEMORY AND 12K BYTE RAM

STMicroelectronics 

ST10F269Z2Qx

The structure of Port 7 differs in the way the output

latches are connected to the internal bus and to

the pin driver. Pins P7.3...P7.0 (POUT3...POUT0)

EXOR the alternate data output with the port latch

output, which allows to use the alternate data

directly or inverted at the pin driver.

Figure 40 : Block Diagram of Port 7 Pins P7.3...P7.0

Write ODP7.y

Open Drain

Latch

Read ODP7.y

Write DP7.y

Direction

Latch

Read DP7.y

Write DP7.y

Port Output

Latch

Read P7.y

Alternate

Data

Output

Port Data

Output

=1

EXOR

1

MUX

0

Output

Buffer

Clock

Input

Latch

P7.y/POUTy

y = 0...3

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