ZPSD211RN Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

ZPSD211RN

Low Cost Field Programmable Microcontroller Peripherals

STMicroelectronics 

PSD211R Family

Table 1.

PSD211R Pin

Descriptions

(cont.)

Name

PC0

PC1

PC2

AD0

AD1

AD2

AD3

AD4

AD5

AD6

AD7

A8

A9

A10

A11

A12

A13

A14

A15

GND

VCC

Type

Description

These pins make up Port C. These port pins are configurable, and

can have the following functions (see Figure 7):

1. PAD input—when configured as an input, a bit individually

becomes an address or a logic input, depending on your PSDsoft

I/O

design file. When declared as an address, the bits are latched

with ALE/AS.

2. PAD output—when configured as an output (i.e. there is an

equation written for it in your PSDsoft design file), there is one

product term available to it.

These pins are the multiplexed, low-order address/data byte

(AD0-AD7). As inputs, address information is latched by the ALE/AS

I/O signal and used internally by the PSD. The pins also serve as MCU

data bus inputs or outputs, depending on the MCU control signals

(RD, WR, etc.).

I/O These pins are the high-order address inputs (A8-A15).

P Ground Pin

P Supply voltage input.

Legend: The Type column abbreviations are: I = input only; I/O = input/output; P = power.

8

Share Link: