LPC47M172_07 Datasheet

IC型號(hào)：
LPC47M172_07
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SMSC Corporation [Advanced I/O Controller with Motherboard ...
文件大?。?/label>
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SMSC

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Advanced I/O Controller with Motherboard GLUE Logic

Datasheet

Chapter 6

Functional Description

The following sections describe the functional blocks located in the LPC47M172 (see Figure 4.1). The

various Super I/O components are described in the following sections and their registers are implemented

as typical Plug-and-Play components (see section Chapter 11

鈭?/div>

Configuration on page 172).

6.1

Super I/O Registers

Table 6.1 shows the logical device number and addresses of FDC, Serial and Parallel ports,

Keyboard/Mouse, Power Control and GPIO Block, Runtime register block and configuration register block

of the Super I/O immediately after power up. The logical device numbering is controlled by the LD_NUM

bit in the TEST 7 configuration register (0x29). The state of LD_NUM is determined by pin 117 as

described in Chapter 2. The base addresses of the blocks can be programmed via the configuration

registers. Some addresses are used to access more than one register. Refer to the 鈥淐onfiguration鈥?/div>

section for configuration register description.

Table 6.1 - Super I/O Block Logical Device Number and Addresses

LD_NUM bit = 0 (default)

(Non-Standard SMSC Register Sets)

NUMBER

00h

01h

DEVICE NAME

Floppy Disk

Controller

Parallel Port

BLOCK ADDRESS

Base+(0-5) and +(7)

Base+(0-3)

Base+(0-7)

Base+(0-3), +(400-402)

Base+(0-7), +(400-402)

Base+(0-7)

LD_NUM bit = 1

(Standard SMSC Register Sets)

DEVICE

BLOCK ADDRESS

NUMBER

NAME

00h

01h

Floppy Disk

Controller

Base+(0-5) and +(7)

02h

03h

Serial Port 2

Serial Port 1

02h

03h

Serial Port 2

Parallel Port

04h

05h

06h

07h

08h

09h

0Ah

Power Control

Mouse

Keyboard

GPIO

Base+(0-31)

60, 64

Base+(0-31)

04h

05h

06h

07h

08h

09h

0Ah

Configuration

Base + (0-1)

Serial Port 1

Keyboard/

Mouse

Runtime

鈥?contains

Power Control

and GPIO

Block registers

in this mode.

Configuration

Base+(0-7)

Base+(0-3)

Base+(0-7)

Base+(0-3), +(400-402)

Base+(0-7), +(400-402)

Base+(0-7)

60, 64

Base+(0-63)

Base + (0-1)

SMSC/Non-SMSC Register Sets (Rev.

01-11-07)

Page 32

SMSC LPC47M172

DATASHEET

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