HP dc71xx 사용자 설명서

The LPC47B397 I/O controller contains various functions such as the keyboard/mouse 
interfaces, diskette interface, serial interfaces, and parallel interface. While the control of these 
interfaces uses standard AT-type I/O addressing (as described in chapter 5) the configuration of 
these functions uses indexed ports unique to the LPC47B397. In these systems, hardware 
strapping selects I/O addresses 02Eh and 02Fh at reset as the Index/Data ports for accessing the 
logical devices within the LPC47B397. Table 4-16 lists the PnP standard control registers for the 
LPC47B397. 

NOTE:
For a detailed description of registers refer to appropriate SMC documentation.

02h

Configuration Control

00h

03h

Reserved

07h

Logical Device (Interface) Select:
   00h = Diskette Drive I/F
   01h = Reserved
   02h = Reserved
   03h = Parallel I/F
   04h = Serial I/F (UART 1/Port A)
   05h = Serial I/F (UART 2/Port B)
   06h = Reserved
   07h = Keyboard I/F
   08h = Reserved
   09h = Reserved
   0Ah = Runtime Registers (GPIO Config.)
   0Bh = SMBus Configuration

00h

20h

Super I/O ID Register (SID)

56h

21h

Revision

--

22h

Logical Device Power Control

00h

23h

Logical Device Power Management

00h

24h

PLL / Oscillator Control

04h

25h

Reserved

26h

Configuration Address (Low Byte)

27h

Configuration Address (High Byte)

28-2Fh

Reserved