
W81E381D/W81E381AD
Publication Release Date: January 2002
Revision 0.52
- 3 -
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