Z53C8003VSC View Datasheet(PDF) - Zilog

Part Name

Description

MFG CO.

Z53C8003VSC

SMALL COMPUTER SYSTEM INTERFACE (SCSI)

Zilog 

ZILOG

Address: 2

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

Arbitrate

DMA Mode

Monitor /BSY

Enable /EOP Interrupt

Enable Parity Interrupt

Enable Parity Checking

Target Mode

"0"

Figure 37. Mode Register

Address: 3

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

Assert I//O

Assert C//D

Assert /MSG

Assert /REQ

"X"

Last Byte Sent

Figure 38. Target Command Register

Address: 4

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

/DB0

/DB1

/DB2

/DB3

/DB4

/DB5

/DB6

/DB7

Figure 39. Select Enable Register

Address: 5

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

"X"

Z53C80 SCSI

Figure 40. Start DMA Send

Address: 6

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

"X"

Figure 41. Start DMA Target Receive

Address: 7

(Write Only)

D7 D6 D5 D4 D3 D2 D1 D0

"X"

Figure 42. Start DMA Initiator Receive

PS97SCC0200

21

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