FANUC Robotics America V7865* User Manual

Page 45

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45

I/O Port Map

2

$0E0 - $16F

142

Reserved

$170 - $177

8

ICH7-M

Secondary Hard Disk Controller

$178 - $1EF

120

User I/O

$1F0 - $1F7

8

ICH7-M

Primary Hard Disk Controller

$1F8 - $277

128

User I/O

$278 - $27F

8

I/O Chip

Reserved

$280 - $2E7

104

Reserved

$2E8 - $2EE

7

UART*

COM4 Serial I/O*

$2EF - $2F7

9

User I/O

$2F8 - $2FE

7

Super-I/O Chip

COM2 Serial I/O
(16550 Compatible)

$2FF - $36F

113

Reserved

$370 - $377

8

Super-I/O Chip*

Secondary Floppy Disk Controller*

$378 - $37F

8

Super-I/O Chip

Reserved

$380 - $3E7

108

Reserved

$3E8 - $3EE

7

UART*

COM3 Serial I/O*

$3F0 - $3F7

8

Super-I/O Chip*

Primary Floppy Disk Controller*

$3F8 - $3FE

7

Super-I/O Chip

COM1 Serial I/O
(16550 Compatible)

$3FF - $4FF

256

Reserved

$500 - CFF

2048

Reserved

* While these I/O ports are reserved for the listed functions, they are not implemented on the
V7865. They are listed here to make the user aware of the standard PC usage of these ports.

Table 2-2 V7865 I/O Address Map (Continued)

I/O Address

Range

Size In

Bytes

HW Device

PC/AT Function

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