8x930Ax UNIVERSAL SERIAL BUS MICROCONTROLLER

iv

Figures

1.

8

x930Ax Internal Block Diagram ..........................................................................................1

2.

USB Module Block Diagram.................................................................................................2

3.

Product Nomenclature .........................................................................................................3

4.

8

x930Ax 68-pin PLCC Package...........................................................................................4

5.

Clock Circuit ....................................................................................................................... 12

6.

8

x930Ax Code Fetch, Nonpage Mode ............................................................................... 18

7.

8

x930Ax Data Read, Nonpage Mode ................................................................................ 19

8.

8

x930Ax Data Write, Nonpage Mode................................................................................. 19

9.

8

x930Ax Code Fetch, Page Mode ..................................................................................... 20

10.

8

x930Ax Data Read, Page Mode....................................................................................... 21

11.

8

x930Ax Data write, Page Mode........................................................................................ 21

12.

External Code Fetch/Data Read (Nonpage Mode, Real-time Wait State) ......................... 23

13.

External Data Write (Nonpage Mode, Real-time Wait State) ............................................. 24

14.

External Data Read (Page Mode, Real-time Wait State) ................................................... 25

15.

External Data Write (Page Mode, Real-time Wait State) ................................................... 26

16.

Serial Port Waveform — Synchronous Mode 0.................................................................. 27

17.

External Clock Drive Waveforms........................................................................................ 28

18.

AC Testing Input, Output Waveforms................................................................................. 29

19.

Float Waveforms ................................................................................................................ 29

Tables

1.

Description of Product Nomenclature...................................................................................3

2.

Proliferation Options.............................................................................................................3

3.

68-pin PLCC Pin Assignment...............................................................................................5

4.

68-pin PLCC Signal Assignments Arranged by Functional Category ..................................6

5.

Signal Descriptions ..............................................................................................................7

6.

Memory Signal Selections (RD1:0) .................................................................................... 10

7.

8

x930Ax Address Map ....................................................................................................... 10

8.

Frequency Selection and Operating Frequency................................................................. 12

9.

DC Characteristics at Operating Conditions....................................................................... 13

10.

AC Timing Symbol Definitions............................................................................................ 15

11.

AC Characteristics at Operating Conditions....................................................................... 16

12.

Real-time Wait Timing Symbol Definitions ......................................................................... 22

13.

Real-time Wait AC Timing Specifications........................................................................... 22

14.

Serial Port Timing — Synchronous Mode 0 ....................................................................... 27

15.

External Clock Drive........................................................................................................... 28

16.

Thermal Characteristics ..................................................................................................... 30

17.

SIx Endpoint Pair Feature .................................................................................................. 31

18.

Effect of “EDF#” on Wait States ......................................................................................... 31

19.

AC Characteristics for 8x930Ax3 and 8x930Ax4 in Compatibility Mode ............................ 32

20.

8

x930Ax3 and 8x930Ax4 Default and Extended Data Float Timings................................. 32

21.

8

x930Ax3 and 8x930Ax4 Real-time Wait State AC Timing Specifications ........................ 33