AS3588AP Ver la hoja de datos (PDF) - austriamicrosystems AG

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AS3588AP

DIGITAL TIME/SPACE CROSSPOINT SWITCH

austriamicrosystems AG 

Data Sheet

Reading the registers in the order OR1 , OR2 must be

continued until completion or until the time frame runs

out. With a new time frame a new extraction process

begins, resuming the copy operation from the

background register. During extraction the active

channels are scanned from the highest to the lowest

number (from 7 to 0). While extraction is being carried

AS3588A

out the time interval requirements between active ris-

ing edges of RD are minimum 5 to 13 tCK for se-

quence OR2- OR1 and minimum 3 times tCK for se-

quence OR1 - OR2. Channel 0 extraction is disabled

by a reset pulse or by writing a zero mask into the de-

vice. This clears the mask register and the background

register

Instruction Tables

Instruction 1: Channel Connection / Disonnection

Control Signals

Data Bus

Comments

SEL C/D CS WR RD D7 D6 D5 D4 D3 D2 D1 D0

X 0 0 0 1 X X X X X BI2 BI1 BI0 Byte 1: PCM input line

X 0 0 0 1 X X X CI4 CI3 CI2 CI1 CI0 Byte2: PCM input channel

X 0 0 0 1 X X X X X BO2 BO1 BO0 Byte 3: PCM output line

X 0 0 0 1 X X X CO4 CO3 CO2 CO1 CO0 Byte4: PCM output channel

1/0 1 0 0 1 X X X X 0 0 0 1 Instruction Byte

1 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1

(BI2) (BI1) (BI0) (CI4) (CI3) (CI2) (CI1) (CI0) Contents of CM

(1) (1) (1) (1) (1) (1) (1) (1) Note 1

1 1 0 1 0 A7 A6 A5 C8 OP3 OP2 OP1 OP0 OR2

(BO2) (BO1) (BO0) (0) (0) (0) (0) (1)

(BO2) (BO1) (BO0) (1) (0) (0) (0) (1) Note 1

Note1: The Connection memory contains all ones if not connected

Instruction 2: Output Channel Disconnection

Control Signals

Data Bus

Comments

SEL C/D CS WR RD D7 D6 D5 D4 D3 D2 D1 D0

X 0 0 0 1 X X X X X BO2 BO1 BO0 Byte 1: PCM output line

X 0 0 0 1 X X X CO4 CO3 CO2 CO1 CO0 Byte 2: PCM output channel

1 1 0 0 1 X X X X 0 0 1 0 Instruction Byte

1 0 0 1 0 C7 C6 C5 C4 C3 C2 C1 C0 OR1

(1) (1) (1) (1) (1) (1) (1) (1) Note 1

1 1 0 1 0 A7 A6 A5 C8 OP3 OP2 OP1 OP0 OR2

(BO2) (BO1) (BO0) (1) (0) (0) (1) (0)

Note1: The Connection memory contains all ones if not connected

Rev. 3.1

Page 6 of 15

July 1999

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