IBM 770 manual Figures, Supply, Maximum, Assignments

Figures

1-1.

Model and Submodel Bytes. . . . . . . . . . . . 1.-2. .

1-2.

System Board Devices and Features. . . . . . . . .1-.3

1-3.

System Board I/O Address. . .Map. . . . . . . .1.-5 .

1-4.

Performance Specifications. . . . . . . .1-7

1-5.

Physical Specifications. . . . . . . . .1-8

1-6.

Electrical Specifications. . . . . . . . .1-9

1-7.

Acoustical Readings. .

. . . . . . . .1-9

1-8.

Power

Supply

Maximum

Current . . . . . . . . . .1-.10

1-9.

Voltage

Pin

Assignments

for the 56W AC .Adapter1-11

1-10.

Lithium-ion Battery Pack Specifications. . . . . . . .1-12

2-1.

Keyboard and Mouse Signals. . . . . . . . . . . .2-.4 .

2-2.

Keyboard/Mouse

Connector

Pin

Assignments. . . . . 2-4

2-3.

Key

Numbers

for

the

84-Key .Keyboard. . . . . . .2.-5

2-4.

Key

Numbers

for

the

85-Key Keyboard. . . . . . . .2.-6

2-5.

Key

Numbers

for

the

External Numeric. .Keypad. . 2-7

2-6.

Hard

Disk

Drive

Connector

Pin

Assignments. . . . . 2-8

2-7.

240-Pin External Bus Connector Pin Assignments. 2-11

2-8.

UltraBay II Connector Pin Assignments. . . . . . . .2-13

2-9.

Diskette

Drive

Read,

Write, and

Format Capabilities

2-15

2-10.

System

Memory Map . . . . . . . . . . . . . . .2-.17. .

2-11. DIMM

Adapter

Card

Memory Connector

Pin

Assignments

. . . . . . . . . . . 2.-18

2-12.

RT/CMOS

RAM Address Map . . . . . . . . . . .2.-19.

2-13.

RT/CMOS

Address

and

NMI

Mask

Register (Hex

0070)

. . . . . . . . . . . . . 2-.20

2-14.

RT/CMOS Data Register (Hex . 0071). . . . . . . 2.-20

2-15.

Real-Time Clock Bytes

(Hex

000–.00D). . . . . . .2-22

2-16.

Status Register A (Hex. . .00A). . . . . . . . .2-.22.

2-17.

Status Register B (Hex. . .00B). . . . . . . . .2-.23.

2-18.

Status Register C (Hex. . 00C). . . . . . . . . .2-.24.

2-19.

Status Register D (Hex. . .00D). . . . . . . . .2-.24.

2-20.

Diagnostic Status Byte (Hex. . .00E). . . . . . .2-.25

2-21.

Diskette Drive Type Byte . (Hex. . . .010). . . .2.-26

2-22.

Diskette Drive Type Bits. . . .7–4. . . . . . . .2-.26.

2-23.

Hard Disk Type Byte (Hex. . . 011). . . . . . . 2.-26.

2-24.

Hard Disk Drive Type 2 .(Bits. . . .7–.4). . . .2-.26

2-25.

Hard

Disk

Drive

Type

3 (Bits. . . . 3.–.0) . . . .2-.26

2-26.

Hard Disk Drive Type. .Byte. . . . . . . . . . 2. -27. .

2-27.

Equipment Byte . . .

. . . . . . . 2.-27

2-28.

Installed Diskette Drive. . .Bits. . . . . . . . .2-.27.

2-29.

Display

Operating

Mode. .Bits. . . . . . . . . .2-.27.

 Copyright IBM

Corp.

1997

vii