Specifications

ESS Technology, Inc. SAM0025A-062397 97
ES1879 DATA SHEET
APPENDIX A: ES1879 INTERNAL PNP RESOURCE ROM
PRELIMINARY
APPENDIX A: ES1879 INTERNAL PNP RESOURCE ROM
; system00.DAT
; PnP Resource ROM for ES1879
;
; LDN0 Control Interface
; LDN1 Audio/FM/MPU-401
; LDN2 Joystick
; *********************************************************
;
; Start of ESS Proprietary Header (8 bytes)
;
; *********************************************************
0A5H ; PNP OK byte
059H ; IRQA = 9 IRQB = 5
0A7H ; IRQC = 7 IRQD = 10
00BH ; IRQE = 11 no more IRQF on ES1879
010H ; DRQA = 0 DRQB = 1
023H ; DRQC = 3 DRQD = 2 (not used)
000H ; MPU-401 part of audio, DRQ latching off
000H ; reserved
; *********************************************************
;
; Start of PNP Resource Header
;
; *********************************************************
016H, 073H, 018H, 079H ; "ESS1879" product id for ES1879
0FFH, 0FFH, 0FFH, 0FFH ; serial number FFFFFFFF (not supported)
02FH ; header checksum
00AH, 010H, 010H ; PNP 1.0, ESS version 1.0
082H, 023H, 000H, "ESS ES1879 Plug and Play AudioDrive"
; *******************************************************
;
; LOGICAL DEVICE 0 -- Configuration Ports
; 8 bytes at any I/O address that is a multiple of 8
;
; *******************************************************
015H, 016H, 073H, 000H, 009H, 000H ; ESS0009
047H, 001H, 000H, 008H, 0F8H, 00FH, 008H, 008H ; 800H-FF8H 8 bytes
; *******************************************************
;
; LOGICAL DEVICE 1 -- Audio Controller w/FM and MPU-401
;
; *******************************************************
015H, 016H, 073H, 018H, 079H, 000H ; ESS1879
; Basic configuration 0000
031H, 000H
02AH, 002H, 008H ; DMA 0: DRQ 1
02AH, 009H, 008H ; DMA 1: DRQ 0 3
022H, 020H, 000H ; INT 0: IRQ 5
047H, 001H, 020H, 002H, 020H, 002H, 000H, 010H ; 220 16 bytes
047H, 001H, 088H, 003H, 088H, 003H, 000H, 004H ; 388 4 bytes
047H, 001H, 030H, 003H, 030H, 003H, 000H, 002H ; 330 2 bytes
; Basic configuration 0001
031H, 001H