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

0FD

RP

1

D7

D6 D5 D4

D3 D2

D1 D0

Register Pointer

MUST BE 0. (ONLY PAGE0 IS

IMPLEMENTED ON Z8E520.)

The upper nibble of the register file address

provided by the register pointer specifies

the active working register group.

DF

R15

Register Group D

D0

R0

CF

R15

Register Group C

C0

R0

3F

R15

Register Group 3

30

R0

2F

R15

Register Group 2 * (ACTIVE)

20

R0

1F

R15

Register Group 1

10

R0

0F

R15

Register Group 0

00

R0

* Register Group 2 is active if RP = 20H.

The lower nibble of the register

file address provided by the

instruction points to the

specific register.

Figure 26. Z8E520 Register Pointe

DS97KEY2005

PRELIMINARY

39

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