Z8C520SSC View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z8C520SSC

1.5 MBPS USB LOW-POWER DEVICE CONTROLLER FOR MULTIPROTOCOL POINTING DEVICES

Zilog 

Zilog

Z8E520/C520

1.5 MBPS USB Device Controller

ADDR

NAME

D7

D6

D5

D4

D3

D2

D1

D0

1

B0

PORT A

A7

A6

A5

A4

A3

A2

A1

A0

B1

PORT B

B7

B6

B5

B4

B3

B2

B1

B0

B2

B3 SIE MODE

B4

LOW

B5 PRIORITY

INTR

PB7

INTR

B6

LOW

PRIORITY

PB7

MSK

MASK

HIGH

B7 PRIORITY

INTR

HIGH

B8 PRIORITY

MASK

B9

COMM

CSR

BA

MODE 3:0

1200

BAUD

SERIAL

PS/2

USB

PB6

INTR

PB6

MSK

HOST COMM BYTE XMIT

ABORT ERROR RCV DONE

SAME AS LOW PRIORITY INTR

OVER- RCV

RUN COMM

ERROR ERROR

RCV

DONE

SAME AS HIGH PRIORITY INTR

RCV

READY

XMIT

READY

BB

PACKET

SIZE

BYTE

BC OFFSETS

BD

RCV PACKET SIZE

LAST BYTE RECEIVED OFFSET

XMIT PACKET SIZE

NEXT SEND BYTE OFFSET

BE

BF

Figure 16. COMM Registers (Non-USB Modes: B0–BF)

DS97KEY2005

PRELIMINARY

27

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