Apple Macintosh PowerBook 165c - Manual (Page 14)

C H A P T E R 1
Hardware
4 Features
Figure 1-1 Block diagram of the PowerBook 165c computer
Enhanced
ASC
Sound input jack
Internal
speaker
Internal modem
connector
DFAC
Battery charger
and power
supply
Battery
RAM
expansion
connector
Internal floppy
disk connector
Apple Desktop
Bus port
Internal hard disk
connector
External
SCSI port
Power
Manager
Port A
(modem)
Port B
(printer)
Serial
ports
SWIM
Combo
SCC/SCSI
Misc. GLU
CPU GLU
I/O data
buffer
ROM
1 MB
PSRAM
4 MB
VIA1 RTC
External
sound jack
Address bus
D31–0
A4–1
Data bus
D31–16
A31–0
D31–24
A12–9
D31–0
A20–2
D31–0
A20–2
D31–0
D31–24
D31–0
D31–24
D25, 24
A31–13, 1, 0
A6–4, 2, 1
A12–9
A11–0
D31–24
D31–24
D31–24
A19–2
Trackball
Keyboard
controller Keyboard
A31–0
D31–0
CPU
MC68030
33 MHz
FPU
MC68882
33 MHz
Pangola
bus
interface
OSC
D31-24
A23-0
A20-0
Address
buffers
Video
RAM
Video
controller
Data bus
D31-16
Monitor
connector
D15–0
A18–0 WD90C55
Flat-panel
display
256K x 16
DRAM
WD90C26
RAMDAC
CLUT
Channel A
Channel B
Drivers
and
receivers
MUX
Filter/amp
Internal microphone