D950CORE データシートの表示（PDF） - STMicroelectronics

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D950CORE

16-Bit Fixed Point Digital Signal Processor (DSP) Core

STMicroelectronics 

D950-Core

2 PIN DESCRIPTION

The following tables detail the D950-Core pin set. There is one table for each group of pins.

The tables detail the pin name, type and a short description of the pin function. A diagram of

the D950-Core I/O interface is contained at the end of the section.

Table 2.1 DATA BUSES (70 PINS)

Pin Name

XD0-XD15

XA0-XA15

XRD

XWR

XBS

YD0-YD15

YA0-YA15

YRD

YWR

YBS

Type

I/O

O

O

O

O

I/O

O

O

O

O

Description

X Data Bus.

Hi-Z during cycles with no X-bus exchange.

X Address bus.

Hi-Z when in Hold.

X-bus read strobe. Active low.

Hi-Z when in Hold.

X-bus write strobe. Active low.

Hi-Z when in Hold.

X-bus strobe. Active low.

Hi-Z when in Hold.

Asserted low at the beginning of a valid X-bus cycle.

Y Data Bus.

Hi-Z during cycles with no Y-bus exchange.

Y Address bus.

Hi-Z when in Hold.

Y-bus read strobe. Active low.

Hi-Z when in Hold.

Y-bus write strobe. Active low.

Hi-Z when in Hold.

Y-bus strobe. Active low.

Hi-Z when in Hold.

Asserted low at the beginning of a valid Y-bus cycle.

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