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VSC060

Data Sheet

Revision 4.1

January 2008

3Registers

This section contains descriptions for the device-specific control registers. All register locations are fixed

within the device and are mapped for easy access, as well as for future enhancements.

3.1

Control Registers

The control register section is separated into three sub-sections: a register map, an address map, and bit

level descriptions of all registers. The register map lists all registers by operating address. The address map

shows the relative layout of all control registers.

Although all registers can be accessed at any time and no register function interferes with the operation of

the serial interface, changing register bits does have an immediate effect on the respective I/O lines.

The following table provides the mapping of the registers.

Table 2. Register Map

Data Memory

Address

Access

Label

Description

00h

R/W

GPD0

General-Purpose I/O Port 0 Data Register

01h

R/W

GPD1

General-Purpose I/O Port 1 Data Register

02h

R/W

GPD2

General-Purpose I/O Port 2 Data Register

03h

R/W

GPD3

General-Purpose I/O Port 3 Data Register

04h

R/W

GPD4

General-Purpose I/O Port 4 Data Register

05h

R/W

GPD5

General-Purpose I/O Port 5 Data Register

06h

R/W

GPD6

General-Purpose I/O Port 6 Data Register

07h

R/W

GPD7

General-Purpose I/O Port 7 Data Register

08h

R/W

GPD8

General-Purpose I/O Port 8 Data Register

09h

R/W

GPD9

General-Purpose I/O Port 9 Data Register

0Ah

R/W

GPD10

General-Purpose I/O Port 10 Data Register

0Bh

R/W

GPD11

General-Purpose I/O Port 11 Data Register

10h

R/W

DDP0

I/O Port 0 Data Direction Register

11h

R/W

DDP1

I/O Port 1 Data Direction Register

12h

R/W

DDP2

I/O Port 2 Data Direction Register

13h

R/W

DDP3

I/O Port 3 Data Direction Register

14h

R/W

DDP4

I/O Port 4 Data Direction Register

15h

R/W

DDP5

I/O Port 5 Data Direction Register

16h

R/W

DDP6

I/O Port 6 Data Direction Register

17h

R/W

DDP7

I/O Port 7 Data Direction Register

18h

R/W

DDP8

I/O Port 8 Data Direction Register

19h

R/W

DDP9

I/O Port 9 Data Direction Register

1Ah

R/W

DDP10

I/O Port 10 Data Direction Register

1Bh

R/W

DDP11

I/O Port 11 Data Direction Register

20h

R/W

PBC0

Port Bypass Control 0 Register

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