W81E381D/W81E381AD
W81E381D/AD Data Sheet Revision History
Pages
1
2
n.a.
P.9, P.11, P.14,
P.35, P.36, P.47,
P.48
P.14, P.53, P.54
Dates
03/2001
09/2001
Version
0.50
0.51
Version
on Web
n.a.
n.a.
Main Contents
First published
1. Modify pin function of SCIO & SCCLK
2. Revise register description of SCCR
(AC) and SCECR (AD)
3. Revise the USB register descriptions
1. Revise register description of
CHPCON (CF)
2. Modify the description of SFRCN &
CHPCON
3
01/2002
0.52
n.a.
4
5
6
7
8
9
10
Please note that all data and specifications are subject to change without notice. All the trademarks of
products and companies mentioned in this datasheet belong to their respective owners.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where
malfunction of these products can reasonably be expected to result in personal injury. Winbond
customers using or selling these products for use in such applications do so at their own risk and
agree to fully indemnify Winbond for any damages resulting from such improper use or sales.
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Publication Release Date: January 2002
Revision 0.52
W81E381D/W81E381AD
TABLE OF CONTENTS
1. General Descriptions: .........................................................................................................................................5
2. FEATURES: .......................................................................................................................................................6
3. PIn configuration ...............................................................................................................................................7
3.1 W81E381D 48-pin LQFP PINOUT............................................................................................................7
3.2 W81E381AD 100-pin LQFP PINOUT .....................................................................................................10
4. Programming interface.....................................................................................................................................13
4.1 Register map ..............................................................................................................................................13
4.2 FLASH Category – Descriptions Summary ............................................................................................14
4.3 SC Category - Descriptions Summary .....................................................................................................14
4.4 USB Category - Descriptions Summary...................................................................................................15
4.5 Individual register description .................................................................................................................16
4.5.1
Register Descriptions - USB Power Control Registers (E7)..........................................................16
4.5.2
Register Descriptions - USB Interrupt System SFRs (A2) ............................................................18
4.5.3
Register Descriptions - USB Interrupt System SFRs (C0) ............................................................19
4.5.4
Register Descriptions - USB Interrupt System SFRs (B1) ............................................................20
4.5.4
Register Descriptions - USB Interrupt System SFRs (B1) ............................................................20
4.5.5
Register Descriptions - USB Function SFRs (E1) .........................................................................21
4.5.6
Register Descriptions - USB Function SFRs (F1) .........................................................................23
4.5.7
Register Descriptions - USB Function SFRs (8F) .........................................................................24
4.5.8
Register Descriptions - USB Function SFRs (E6) .........................................................................26
4.5.9
Register Descriptions - USB Function SFRs (E4) .........................................................................27
4.5.10 Register Descriptions - USB Function SFRs (E3) .........................................................................28
4.5.11 Register Descriptions - USB Function SFRs (E5) .........................................................................30
4.5.12 Register Descriptions - USB Function SFRs (E2) .........................................................................32
4.5.13 Register Descriptions - USB Function SFRs (F6) .........................................................................34
4.5.14 Register Descriptions - USB Function SFRs (F4) .........................................................................35
4.5.15 Register Descriptions - USB Function SFRs (F3) .........................................................................36
4.5.16 Register Descriptions - USB Function SFRs (F5) .........................................................................38
4.5.17 Register Descriptions - USB Function SFRs (F2) .........................................................................40
4.5.18 Register Descriptions - USB Device SFRs (B7)............................................................................42
4.5.19 Register Descriptions - USB Device SFRs (BF)............................................................................43
4.5.20 Register Descriptions - SC Interrupt SFRs (AA)...........................................................................44
4.5.21 Register Descriptions - SC Interrupt SFRs (AB) ...........................................................................45
4.5.22 Register Descriptions - SC Control SFRs (A3)..............................................................................46
4.5.24 Register Descriptions - SC Control SFRs (AC).............................................................................47
4.5.25 Register Descriptions - SC Control SFRs (AD).............................................................................48
4.5.26 Register Descriptions - SC Control SFRs (AE, A4) ......................................................................49
4.5.27 Register Descriptions - SC Control SFRs (A5)..............................................................................50
4.5.28 Register Descriptions - SC Data SFRs (A6, A7) ...........................................................................51
4.5.29 Register Descriptions – ISP Registers (C4, C5).............................................................................52
4.5.30 Register Descriptions – ISP Registers (C6, C7).............................................................................53
Publication Release Date: January 2002
Revision 0.52
-3-
W81E381D/W81E381AD
4.5.31
4.5.32
Register Descriptions – uC Control Registers (CF) .......................................................................54
Register Descriptions – uC Control Registers (D4, D5) ................................................................55
4.6 MTP-ROM PROGRAMMING ................................................................................................................56
5. Security..............................................................................................................................................................57
6. Electrical Characteristics .................................................................................................................................58
7. Mechanical information ...................................................................................................................................59
7.1 W81E381D 48 LQFP (7x7x1.4mm footprint 2.0mm) PACKAGE ........................................................59
7.2 W81E381AD 100 LQFP (14x14x1.4 mm footprint 2.0mm) PACKAGE...............................................60
8. TYPICAL APPLICATION ...............................................................................................................................61
8.1 W81E381D reference schematic ...............................................................................................................61
8.2 W81E381AD reference schematic ............................................................................................................62
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Publication Release Date: January 2002
Revision 0.52
W81E381D/W81E381AD
1. GENERAL DESCRIPTIONS:
The W81E381 is 8052-based USB device with 20 Kbytes flash memory. By integrating the USB1.1
transceiver, SIE, enhanced 8032 code, 20K Flash memory, extra 256 Byte RAM, power regulator, and
general purpose I/O in single chip, W81E381D/W81E381AD creates a very low cost-effective solution
that provides superior time-to-market advantages. The GPIO provides an easy interface to popular
interface, such as ATAPI, EPP, RS232, MCU and DSP interface.
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Publication Release Date: January 2002
Revision 0.52
Embedded System
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