CS4216 Datasheet, PDF (51/58 Pages) Cirrus Logic – 16-Bit Stereo Audio Codec

;PALASM Design Description
;---------------------------------- Declaration Segment ------------
TITLE
CDB4216
PATTERN
4216S_B
REVISION
4.0B
AUTHOR
C. Sanchez, M. Jordan
COMPANY
Crystal Semiconductor
DATE
5/28/93
CHIP _4216s_b PALCE16V8
;---------------------------------- PIN Declarations ---------------
PIN
1
/SPF2
COMBINATORIAL ; INPUT
PIN
2
/SPF1
COMBINATORIAL ; INPUT
PIN
3
/MA
COMBINATORIAL ; INPUT
PIN
4
/BPF2
COMBINATORIAL ; INPUT
PIN
5
/BPF1
COMBINATORIAL ; INPUT
PIN
6
/TS2
COMBINATORIAL ; INPUT
PIN
7
/TS1
COMBINATORIAL ; INPUT
PIN
8
/DIV3
COMBINATORIAL ; INPUT
PIN
9
/DIV2
COMBINATORIAL ; INPUT
PIN
10
GND
PIN
11
NC
PIN
12
/CFSIN
COMBINATORIAL ; OUTPUT
PIN
13
NC
PIN
14
NC
PIN
15
SMODE3
COMBINATORIAL ; OUTPUT
PIN
16
SMODE2
COMBINATORIAL ; OUTPUT
PIN
17
MF7
COMBINATORIAL ; OUTPUT
PIN
18
MF8
COMBINATORIAL ; OUTPUT
PIN
19
SMODE1
COMBINATORIAL ; OUTPUT
PIN
20
VCC
;----------------------------------- Boolean Equation Segment ------
EQUATIONS
/CFSIN = SPF2 * MA
SMODE3 = SPF2 * SPF1
SMODE2 = SPF2 * /SPF1
+ SPF2 * SPF1 * /MA
+ SPF2 * SPF1 * MA * BPF1 * TS1
+ SPF2 * SPF1 * MA * BPF1 * TS2
+ SPF2 * SPF1 * MA * BPF2 * TS1
+ SPF2 * SPF1 * MA * BPF2 * TS2
SMODE1 = /SPF2 * SPF1
+ SPF2 * SPF1 * MA * BPF1
+ SPF2 * SPF1 * MA * BPF2
MF8 = /SPF2 * TS2
+ SPF2 * /SPF1 * MA * BPF2
+ SPF2 * /SPF1 * MA * BPF1
+ SPF2 * /SPF1 * /MA * BPF2 * TS2
+ SPF2 * SPF1 * /MA * /BPF2 * BPF1 * TS1
DS83DB4
Figure 9. PALCE16V8H PAL Equations.
CDB4216
51