5962-9054301MQA Ver la hoja de datos (PDF) - Harris Semiconductor

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5962-9054301MQA

CMOS High Performance Programmable DMA Controller

Harris Semiconductor 

Timing Waveforms (Continued)

82C37A

S0

S11

S12

S13

S14

S21

S22

S23

S24

S11/SI

CLK

(33)

TCLSH

ADSTB

TFAAB (22)

TASS (11)

A0-A7

(34)

TCLSL

TFADB (24)

(33)

TCLSH

(7)

TAHS

(59) TRHSH

ADDRESS VALID

(5) TAFDB TASS

(11)

(34)

TCLSL

TAHS

(7)

TWHSH

(60)

ADDRESS VALID

TAFDB

(5)

DB0-DB7

TFAC (23)

MEMR

TFAC (23)

A8-A15

TDCL

(15)

IN

(16) TDCTR

TAZRL TIDS

(64)

(27)

A8-A15

(24)

TFADB TOVD

TIDH (26) (29)

TDCTW (17)

TDCL

(15)

TDCL

(15)

OUT

MEMW

EOP

EXTENDED WRITE

(19) TEPH

TAK

(9)

TEPS (20)

TCLSH

(33)

TAFAB

(3)

TODH (28)

TAFC

(4)

TAFC

(4)

TAK

(9)

EXT EOP

TEPW

(21)

FIGURE 11. MEMORY-TO-MEMORY TRANSFER

CLK

READ

WRITE

READY

S2

S3

SW

(15)

TDCL

(15)

TDCL

(15)TDCL

EXTENDED WRITE

(31)TRH

(32)TRS

(31)

TRH

SW

(32)TRS

S4

(16)

TDCTR

(17)

TDCTW

FIGURE 12. READY

NOTE: READY must not transition during the specified setup and hold times.

4-211

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