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Part Name
Description
Z89390 View Datasheet(PDF) - Zilog
Part Name
Description
Manufacturer
Z89390
16-BIT DIGITAL SIGNAL PROCESSOR
Zilog
Z89390 Datasheet PDF : 11 Pages
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Z
ILOG
PRELIMINARY
GENERAL DESCRIPTION
(Continued)
External Program ROM
PD15-PD0
PA15-PA0
16
16
PD
PA
Z89390
CPS DC-9030-01
Register
Pointer
0-2
S-Bus
256 Word
RAM
0
256 Word
RAM
1
Register
Pointer
4-6
16
Instruction
Register
16-Bit Bus
Switch
X
Y
16 x16
Multiplier
24-bit P
24
24-Bit Bus
P Bus
MUX
Shifter
B
A
ALU
Switch
D Bus
Stack
Status
(5)
16
PC
Ready
16-bit
I/O
Port
16
EXT0-15
WAIT, RD/WR, /OS
3
EA0-2
EXT5-1 EXT5-2
EXT6-1 EXT6-2
EXT7-1 EXT7-2
EXT4
13-Bit
Timer
CODEC
Interface
RXD
TXD
SCLK
FS0
FS1
Interrupt
3
/INTO-2
/RESET
ACC
Note: EXT5, EXT6, and INTERRUPT1 are used for the CODEC Interface. EXT4 and
INTERRUPT2 are used for the 13-bit timer.
2
UI0-1
User
2
Port
UO0-1
Z89391 Functional Block Diagram
2
DC 9030-00
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