SA3488 Datasheet, PDF (15/20 Pages) Sames – CMOS 256 X 256 DIGITAL SWITCHING MATRIX

SA3488
INSTRUCTION 3: LOADING A MICROPROCESSOR BYTE
Control Signals
Data Bus
Match C/D CS WR RD D7 D6 D5 D4 D3 D2 D1 D0 Notes
X
0 0 0 1 X X X X X Ci7 Ci6 Ci5 1^stData Byte: most significant
digits to be inserted
X
0 0 0 1 X X X Ci4 Ci3 Ci2 Ci1 Ci0 2^nd Data Byte: least significant
digits to be inserted
X
0 0 0 1 X X X X X Bo2 Bo0 Bo1 3^rdData Byte: selected output
bus
X
0 0 0 1 X X X Co4 Co3 Co2 Co1 Co0 4^thData Byte: selected output
channel
Yes/no 1 0 0 1 X X X X 0 1 0 0 Instruction Opcode
Yes 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1 : CM
(1 1 1 1 1 1 1 1) content copy, that
(Ci7 Ci6 Ci5 Ci4 Ci3 Ci2 Ci1 Ci0) is for mismatch condition or
match condition
Yes 1 0 1 0 A7 A6 A5 1 0 1 0 0 OR2
(Bo2 Bo1 Bo0 1 0 1 0 0)
INSTRUCTION 4: TRANSFER OF A SINGLE PCM SAMPLE
Control Signals
Match C/D CS WR RD D7
X
0001X
X
0001X
Data Bus
D6 D5 D4 D3 D2 D1 D0 Notes
X X X X Bo2 Bo1 Bo0 1^stData Byte: selected output
bus
X X Co4 Co3 Co2 Co1 Co0 2^ndData Byte: selected output
channel
Yes 1 0 0 1 X X X X 1 0 1 1 Instruction Opcode
Yes 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1 : CM Content
S7 S6 S5 S4 S3 S2 S1 S0 Copy if C8= 1; or
SM Content Sample if C8=0
Yes 1 0 1 0 A7 A6 A5 C8 1 0 1 1 OR2
(Bo2 Bo1 Bo0 C8 1 0 1 1)
Note: S7..S0 is a parallel copy of the PCM data; S7 is the most significant digit and the first of the sequence.
sames
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