1.5Revision History

Revision

Date

Changes

February 2001

Initial release

A

February 2003

1. Removed most references to ROM version, including the MCU

Memory Map (ROM Version) figure.

2.

Clarified pin names and descriptions for pins 8 (S2), 9 (S3), 21

(GND), 37 (VDD18), 57 (P3.1/S1/TXD), and 58 (P3.0/S0/RXD).

3.

Removed NOTE from cover page.

4.

Expanded Ordering Information table.

5.

Clarified pin fuunctions for pins 14 (TEST0) and 15 (TEST1)

(14 & 15) in Terminal Functions table. Simplified Terminal

Function table for GPIO ports.

7.

Added note on open-drain output pins for Terminal Functions

table.

8.

Added ET2 information to the 8052 Interrupt Location Map

table and further clarified the entire 8052 Interrupt and Status

Registers section.

9.

Corrected quiescent and suspend current values in Electrical

Characteristics table.

B

April 2003

1. Grammatical clean-up

2.

Clarification on pin 55 (P3.3) and its functionality as

INT1.

3.

Additional corrections in the 8052 Interrupt and Status Regis-

ters section.

C

Nov-2003

1. Added USB logo to cover page.

2.

Corrected pin 37 (1.8VDD) polarity in Terminal Functions table.

3.

Removed note for pin 20 (TEST2) from Terminal Functions

table.

4.

Removed application diagram Figure 4.4.

5.

Clarified Section 4-2, Reset Timing

D

June 2004

1. Corrected description for pin 20 (TEST2).

2.

Added description of programmable delay to the P2[7:0], P3.3

Interrupt (INT1) section.

3.

Added delay values for I[3:0] to the INTCFG register descrip-

tion.