CS4231A Datasheet, PDF (70/76 Pages) List of Unclassifed Manufacturers – PARALLEL INTERFACE MULTIMEDIA AUDIO CODEC

CDB4231/4248
;PALASM Design Description
;---------------------------------- Declaration Segment ------------
TITLE
Read ID + relay enable
PATTERN ID31.PDS
REVISION 2.0
AUTHOR Clif Sanchez
COMPANY Crystal Semiconductor
DATE
10/28/93
CHIP _ID31 PAL22V10
;---------------------------------- PIN Declarations ---------------
PIN 1
MUTE
; I - from Codec XCTL1 pin, Software Mute
PIN 2
/BIOR
; I - buffered /IOR from 244
PIN 3
/CRES
; I - inverted RESDRV from the AD31 PLD
PIN 4
/CCS
; I - codec chip select, used for ACCESS
PIN 5
/RDID
; I - Read ID chip select, from the AD31 PLD
PIN 6
INT
PIN 7
NC
PIN 8
NC
PIN 9
NC
PIN 10
NC
PIN 11
NC
PIN 13
SBHE
;I
PIN 14
D0
; O - Data Bus, Enabled for /RDID
PIN 15
D1
; O Places Read on the data bus
PIN 16
D2
;O
PIN 17
D3
;O
PIN 18
D4
;O
PIN 19
D5
;O
PIN 20
D6
;O
PIN 21
D7
;O
PIN 22
ACCESS
; O - True after first read of the codec
PIN 23
/RLYEN
; O - Relay Enable
;----------------------------------- Boolean Equation Segment ------
EQUATIONS
D0 = GND
D0.TRST = RDID
D1 = GND
D1.TRST = RDID
D2 = VCC
D2.TRST = RDID
D3 = GND
D3.TRST = RDID
D4 = GND
D4.TRST = RDID
D5 = GND
D5.TRST = RDID
D6 = /INT
D6.TRST = RDID
D7 = SBHE
D7.TRST = RDID
Board ID PLD - ID31
70
DS111DB7