IBM 560E manual System, Connector, Dimm

System

Memory Map

Memory

is

mapped

by

the

memory

controller

registers.

Figure 2-10

shows

the memory map for a correctly functioning

system. Memory

can

be

mapped

differently if POST detects an error

in

system

board

memory or RT/CMOS RAM. In the figure, the

variablex represents the number

of 1MB blocks of system board

memory

starting

at

or

above the

hex 100000 boundary.

Hex

Address

Range

Function

00000000

to

0009FFFF

640KB

system board

RAM

000A0000

to

000BFFFF

Video

RAM

000C0000

to

000C7FFF

System

board

video

BIOS

ROM

mapped

to

RAM

000C8000

to

000EFFFF

Channel

ROM

000F0000

to

000FFFFF

64KB

system

board ROM mapped to RAM

00100000

to

(00100000

+

xMB

system

board RAM

xMB)

FFFF0000

to

FFFFFFFF

64KB

system

board

ROM

(same as 000F0000 to 000FFFFF)

Figure

2-10. System

Memory

Map

System

Board

Memory

Connector

for

DIMM

The

system

board

of

ThinkPad

560

has

one

DIMM

connector that

directly accepts one 144-pin DIMM of one of the following three different capacities: 8MB, 16MB, or 32MB.

The system board of ThinkPad 560E has one DIMM connector that directly accepts one 144-pin DIMM of one of the following four different capacities: 8MB, 16MB, 32MB, or 64MB (2-bank type).

Figure 2-11 on page 2-15 shows the pin assignments for the DIMM connector.

2-14ThinkPad 560/560E System Board