UPSD3212C-40U6 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

UPSD3212C-40U6

Flash programmable system devices with 8032 MCU and USB and programmable logic

STMicroelectronics 

uPSD3212A, uPSD3212C, uPSD3212CV

External Chip Select

The CPLD also provides two External Chip Select

(ECS1-ECS2) outputs on Port D pins that can be

used to select external devices. Each External

Chip Select (ECS1-ECS2) consists of one product

term that can be configured active High or Low.

The output enable of the pin is controlled by either

the output enable product term or the Direction

Register. (See Figure 64.)

Figure 64. Port D External Chip Select Signals

ENABLE (.OE)

DIRECTION

REGISTER

PT1

POLARITY

BIT

ECS1

PD1 PIN

ENABLE (.OE)

PT2

POLARITY

BIT

DIRECTION

REGISTER

ECS2

PD2 PIN

AI06607

121/163

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