DSP56156 View Datasheet(PDF) - Motorola => Freescale

Part Name

Description

Manufacturer

DSP56156

16-bit Digital Signal Processor

Motorola => Freescale 

Freescale Semiconductor, Inc.

AC Electrical Characteristics and Timing

Reset, Stop, Wait, Mode Select, and Interrupt Timing

Table 14 Wait and Stop Timings

Num

Characteristics

40 MHz

Min

Max

50 MHz

Min

Max

60 MHz

Unit

Min

Max

30 DR Asserted to CLK high (Setup

Time for Synchronous Recovery

10

cyc - 4

9

cyc - 3

8

cyc - 2 ns

from Wait State)

31 CLK high to DSO (ACK) Valid

(Enter Debug Mode) after Syn-

chronous Recovery from Wait

18 cyc

—

18 cyc

—

18 cyc

—

ns

State

32 DR to DSO (ACK) Valid

(Enter Debug Mode)

- After Asynchronous Recovery

from Stop State

29 cyc

—

29 cyc

—

29 cyc

—

ns

- After Asynchronous Recovery

from Wait State

18 cyc

—

18 cyc

—

18 cyc

—

ns

33 DR Assertion Width

- to Recover from Wait/Stop

without entering debug mode

12

10 cyc

11

10 cyc

10

10 cyc ns

- to Recover from Wait/Stop

short wake-up and enter

29 cyc

—

29 cyc

—

29 cyc

—

ns

debug mode

- to Recover from Stop

long wake-up and enter

debug mode

262157

—

262157

—

262157

—

ns

cyc

cyc

cyc

33

DR

(input)

32

DSO

(output)

Figure 15 Recovery from Wait State Using DR Pin — Synchronous Timing

MOTOROLA

DSP56156 Data Sheet

27

For More Information On This Product,

Go to: www.freescale.com

Share Link: