A51 MACRO ASSEMBLER  DSCR                                                                 05/18/2006 20:44:04 PAGE     1


MACRO ASSEMBLER A51 V6.14
OBJECT MODULE PLACED IN .\dscr.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE .\dscr.a51 SET(SMALL) DEBUG EP

LOC  OBJ            LINE     SOURCE

                       1     ;;-----------------------------------------------------------------------------
                       2     ;;   File:      dscr.a51
                       3     ;;   Contents:   This file contains descriptor data tables.  
                       4     ;;
                       5     ;;   Copyright (c) 1997 AnchorChips, Inc. All rights reserved
                       6     ;;-----------------------------------------------------------------------------
                       7        
  0001                 8     DSCR_DEVICE   equ   1   ;; Descriptor type: Device
  0002                 9     DSCR_CONFIG   equ   2   ;; Descriptor type: Configuration
  0003                10     DSCR_STRING   equ   3   ;; Descriptor type: String
  0004                11     DSCR_INTRFC   equ   4   ;; Descriptor type: Interface
  0005                12     DSCR_ENDPNT   equ   5   ;; Descriptor type: Endpoint
  0006                13     DSCR_DEVQUAL  equ   6   ;; Descriptor type: Device Qualifier
                      14     
  0012                15     DSCR_DEVICE_LEN   equ   18
  0009                16     DSCR_CONFIG_LEN   equ    9
  0009                17     DSCR_INTRFC_LEN   equ    9
  0007                18     DSCR_ENDPNT_LEN   equ    7
  000A                19     DSCR_DEVQUAL_LEN  equ   10
                      20     
  0000                21     ET_CONTROL   equ   0   ;; Endpoint type: Control
  0001                22     ET_ISO       equ   1   ;; Endpoint type: Isochronous
  0002                23     ET_BULK      equ   2   ;; Endpoint type: Bulk
  0003                24     ET_INT       equ   3   ;; Endpoint type: Interrupt
                      25     
                      26     public      DeviceDscr, DeviceQualDscr, HighSpeedConfigDscr, FullSpeedConfigDscr, StringDsc
                             r, UserDscr
                      27     
                      28     DSCR   SEGMENT   CODE PAGE
                      29     
                      30     ;;-----------------------------------------------------------------------------
                      31     ;; Global Variables
                      32     ;;-----------------------------------------------------------------------------
----                  33           rseg DSCR      ;; locate the descriptor table in on-part memory.
                      34     
0000                  35     DeviceDscr:   
0000 12               36           db   DSCR_DEVICE_LEN      ;; Descriptor length
0001 01               37           db   DSCR_DEVICE   ;; Decriptor type
0002 0002             38           dw   0002H      ;; Specification Version (BCD)
0004 00               39           db   00H        ;; Device class
0005 00               40           db   00H         ;; Device sub-class
0006 00               41           db   00H         ;; Device sub-sub-class
0007 40               42           db   64         ;; Maximum packet size
0008 4705             43           dw   4705H      ;; Vendor ID
000A 0210             44           dw   0210H      ;; Product ID (Sample Device)
000C 0000             45           dw   0000H      ;; Product version ID
000E 01               46           db   1         ;; Manufacturer string index
000F 02               47           db   2         ;; Product string index
0010 00               48           db   0         ;; Serial number string index
0011 01               49           db   1         ;; Number of configurations
                      50     
0012                  51     DeviceQualDscr:
0012 0A               52           db   DSCR_DEVQUAL_LEN   ;; Descriptor length
0013 06               53           db   DSCR_DEVQUAL   ;; Decriptor type
0014 0002             54           dw   0002H      ;; Specification Version (BCD)
0016 00               55           db   00H        ;; Device class
0017 00               56           db   00H         ;; Device sub-class
0018 00               57           db   00H         ;; Device sub-sub-class
A51 MACRO ASSEMBLER  DSCR                                                                 05/18/2006 20:44:04 PAGE     2

0019 40               58           db   64         ;; Maximum packet size
001A 01               59           db   1         ;; Number of configurations
001B 00               60           db   0         ;; Reserved
                      61     
001C                  62     HighSpeedConfigDscr:   
001C 09               63           db   DSCR_CONFIG_LEN               ;; Descriptor length
001D 02               64           db   DSCR_CONFIG                  ;; Descriptor type
001E 20               65           db   (HighSpeedConfigDscrEnd-HighSpeedConfigDscr) mod 256 ;; Total Length (LSB)
001F 00               66           db   (HighSpeedConfigDscrEnd-HighSpeedConfigDscr)  /  256 ;; Total Length (MSB)
0020 01               67           db   1      ;; Number of interfaces
0021 01               68           db   1      ;; Configuration number
0022 00               69           db   0      ;; Configuration string
0023 80               70           db   10000000b   ;; Attributes (b7 - buspwr, b6 - selfpwr, b5 - rwu)
0024 32               71           db   50      ;; Power requirement (div 2 ma)
                      72     
                      73     ;; Interface Descriptor
0025 09               74           db   DSCR_INTRFC_LEN      ;; Descriptor length
0026 04               75           db   DSCR_INTRFC         ;; Descriptor type
0027 00               76           db   0               ;; Zero-based index of this interface
0028 00               77           db   0               ;; Alternate setting
0029 02               78           db   2               ;; Number of end points 
002A FF               79           db   0ffH            ;; Interface class
002B 00               80           db   00H               ;; Interface sub class
002C 00               81           db   00H               ;; Interface sub sub class
002D 00               82           db   0               ;; Interface descriptor string index
                      83           
                      84     ;; Endpoint Descriptor
002E 07               85           db   DSCR_ENDPNT_LEN      ;; Descriptor length
002F 05               86           db   DSCR_ENDPNT         ;; Descriptor type
0030 02               87           db   02H               ;; Endpoint number, and direction
0031 02               88           db   ET_BULK            ;; Endpoint type
0032 00               89           db   00H               ;; Maximun packet size (LSB)
0033 02               90           db   02H               ;; Max packect size (MSB)
0034 00               91           db   00H               ;; Polling interval
                      92     
                      93     
                      94     
                      95     
                      96     
                      97     
                      98     
                      99     
                     100     
                     101     
                     102     ;; Endpoint Descriptor
0035 07              103           db   DSCR_ENDPNT_LEN      ;; Descriptor length
0036 05              104           db   DSCR_ENDPNT         ;; Descriptor type
0037 86              105           db   86H               ;; Endpoint number, and direction
0038 02              106           db   ET_BULK           ;; Endpoint type
0039 00              107           db   00H               ;; Maximun packet size (LSB)
003A 02              108           db   02H               ;; Max packect size (MSB)
003B 00              109           db   00H               ;; Polling interval
                     110     
                     111     
                     112     
                     113     
                     114     
                     115     
                     116     
                     117     
                     118     
                     119     
003C                 120     HighSpeedConfigDscrEnd:   
                     121     
003C                 122     FullSpeedConfigDscr:   
003C 09              123           db   DSCR_CONFIG_LEN               ;; Descriptor length
A51 MACRO ASSEMBLER  DSCR                                                                 05/18/2006 20:44:04 PAGE     3

003D 02              124           db   DSCR_CONFIG                  ;; Descriptor type
003E 20              125           db   (FullSpeedConfigDscrEnd-FullSpeedConfigDscr) mod 256 ;; Total Length (LSB)
003F 00              126           db   (FullSpeedConfigDscrEnd-FullSpeedConfigDscr)  /  256 ;; Total Length (MSB)
0040 01              127           db   1      ;; Number of interfaces