Z8C520PSC View Datasheet(PDF) - Zilog

Part Name

Description

Manufacturer

Z8C520PSC

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

Zilog 

Z8E520/C520

1.5 MBPS USB Device Controller

FUNCTIONAL DESCRIPTION (Continued)

Zilog

ADDR NAME

D7

D6

D5

D4

D3

D2

D1

D0

B0

PORT A

A7

A6

A5

A4

A3

A2

A1

A0

B1

PORT B

B7

B6

B5

B4

B3

B2

B1

B0

B2

ADDR

USB ADDRESS 6:0

B3 SIE MODE

SIE MODE 7:0

RS232 PS/2 USB

B4

USB CSR

SIE

POWER

FORCE ACTIVITY J STATE

RESUME

EP MODE 2:0

LOW

B5 PRIORITY

INTR

LOW

B6 PRIORITY

MASK

DEPENDS ON EP MODE

(SEE TABLE 10)

DEPENDS ON EP MODE

(SEE TABLE 10)

B7

HIGH

PRIORITY RESUME

INTR

NAK

SENT

EP1

NAK

SENT

EP0

STALL

SENT

EP2

STALL STALL

SENT SENT

EP1

EP0

SETUP SETUP

EP1

EP0

HIGH

B8 PRIORITY

MASK

SAME AS HIGH PROIORITY INTR

B9

EP0

CSR

ACK

STATUS

OUT

VBOSULEFATFUTEIPLRESEROVUITCED

OUT

DATA

TOGGLE

FORCE

STALL

FORCE

NAK

IN

IN

PACKET DATA

READY TOGGLE

BA

EP1/2

CSR

DEPENDS ON EP MODE

(SEE TABLE 11)

BB

EP0

COUNT

EP0 OUT COUNT 3:0

EP0 IN COUNT 3:0

BC

EP1/2

COUNT

DEPENDS ON EP MODE

(SEE TABLE 12)

BD

BE

BF

Figure 15. COMM Registers (USB Mode: B0–BF)

22

PRELIMINARY

DS97KEY2005

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