Specifications

CHAPTER 2
Architecture
Block Diagram 21
Figure 2-1 Block diagram
A31–0
D31–0
D31–0
A21–2
D31–0
DFAC II
ADB
transceiver
Cuda
(68HC05)
ADB
micro-
controller
RA10–0
D15–0
A31,
A23–0
DFAC control
D31–0
A31–0
D31–0
CPU
MC68030
Monitor
circuitry
Pushbuttons
A2 A1
D31–24
A6–4
Ch. A
Ch. B
Port A (modem)
Port B (printer)
Serial ports
Drivers &
receivers
Connector for internal
SCSI hard disk drive
External
SCSI port
85C80
Combo
(includes
SCC and
SCSI
controller)
ADB ports
External
mic input
Internal mic
Internal
speakers
External
sound
output
Processor direct slot
Bidirectional
bus
transceivers
ROM SIMM
ROM
RAM SIMM
RAM
Bidirectional
bus
transceivers
VRAM SIMM
VRAM
C
onnector for internal
floppy disk drive
FPU
socket
MC68882
Ardbeg
Custom
system
controller
IC
(includes
SWIM II
floppy disk
controller)
Ariel
CLUT/DAC
Speaker
amplifier
Output
filter
Input
amplifier,
AGC, &
filter
ADC
14-inch
video
monitor