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PDF CDP1802BC Data sheet ( Hoja de datos )

Número de pieza CDP1802BC
Descripción CMOS 8-Bit Microprocessor
Fabricantes GE 
Logotipo GE Logotipo



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No Preview Available ! CDP1802BC Hoja de datos, Descripción, Manual

_________________ 1800-Series Microprocessors and Microcomputers
CDP1802BC
CLOCK
WAiT
CLEAR
Q
SCI
seo
MRD
BUS 7
BUS 6
BUS 5
BUS 4
BUS :3
BUS 2
BUS I
BUS a
Vee
N2
NI
NO
V55
4,.0
"'3".
"34
. ""10
"30
"12 29
20
"14 27
" ,.I. 2.
17 24
10 23
I. 22
20 21
TOP VIEW
xVomo
1iiiATFi
DMA OUT
~
MWR
TPA
TPO
"A.
"AS
"A4
"A3
"A2
"AI
m"AO
m
mm
92CS-<'7467RI
TERMINAL ASSIGNMENT
CMOS 8-Bit Microprocessor
Features:
• Minimum instruction fetch-execute time of 3.2 /.IS
(maximum clock frequency =5 MHz) at Voo =5 V
• Any combination of standard RAM and ROM up to 65,536 bytes
• Operates with slow memories, up to 775 ns access time at fCl = 5 MHz
• B-bit parallel organization with bidirectional data bus and multiplexed
address bus
• 16 x 16 matrix of registers for use as multiple program counters,
data pointers, or data registers
• On-chip DMA, interrupt, and flag mputs
• Programmable single-bit output port
• 91 easy-to-use instructIOns
The RCA-COP1802BC LSI CMOS 8-bit register-oriented
central-processing unit (CPU) is designed for use as a
general-purpose computing or control element in a wide
range of stored-program systems or products.
The COP1802BC includes all of the circuits required for
fetching, interpreting, and executing instructions which
have been stored in standard types of memories. Extensive
input/output (1/0) control features are also provided to
facilitate system design.
The 1800 series architecture is designed with emphasis on
the total microcomputer system as an integral entity so that
systems having maximum flexibility and minimum cost can
be realized. The 1800 series CPU also provides a syn-
chronous interface to memories and external controllers
for 1/0 devices, and minimizes the cost of interface con-
trollers. Further, the 1/0 interface IS capable of supporting
deVices operating in polled, interrupt-driven, or direct
memory-access modes.
The COP1802BC has a recommended operating voltage
range of 4 to 6.5 volts. These types are supplied in 40-lead
dual-in-line side-brazed ceramic packages (0 suffix), 40-
lead dual-in-line plastic packages (E suffix), and 44-lead
plastic chip-carrier (PCC) packages (0 suffix).
==>
<==
CDP1852
INPUT PORT CS2
fTDATA CS'
Jl
DATA CSI
l -CDPI852 CS2
I -OUTPUT PORT
CLOCK
II
MAO-7
NO
MRo
CDPI802
8-BIT CPU
e-- NI
MWR
- TPB
TPA
DATA
II
ADDRESS BUS
'0'
MAO-7
Mifo
CDPI833
r K-ROM
TPA
B- BIT DATA BUS
DATA
\/
CEO
Fig 1 - TYPical CDP1802BC small microprocessor system.
\J
MAO-4
MRO
CDPI824
32 BYTE RAM
MWR
cs
DATA
II
92CM- 34661Rl
File Number 1342
__________________________________ 39

1 page




CDP1802BC pdf
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1800-Series Microprocessors and Microcomputers
CDP1802BC
CONTROL
~
'-----'-If-+ XTAL
• CONTROL AND
TIMING LOGIC
SCOLSTATE
SCI) CODES
Q LOGIC
~~~YSTEM
MW'R IMING
flI!ll
Fig. 8 - CDP1802BC block diagram.
NO} I/O
NI COMMANDS
N2
BUS3
BUS
BUS~
BUS6
BUS
92CM-34668RI
CLOCK
AOMESS __L-~H~I~~~T~E~-L______~L~O~W~B~YT~E~______-L__H~I~8~Y~T~E__~______~L~O~W~B~Y~TE~______-L__
_ _ _ _ _ _ _ __TPA ~'---_ _ _ _ _ _ _ _ _..JIl~
TPB _ _ _ _ _ _ _ _ _---IIlL._ _ _ _ _ _ _ _ _.....J1L
~_--,r-
_Jr_~A------------c:::::~V~AL~'~D!IN~P~UT~DA~T~A~:::J~~________V_AL~I~D_O~U_TP~U~T~D~A~TA~____
Fig. 9 - Basic de timing waveforms, one instruction cycle.
neM-55H2
__________________________________________________________________________________________________________ 43

5 Page





CDP1802BC arduino
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1800-Serles Microprocessors and Microcomputers
CDP1802BC
TABLE I -INSTRUCTION SUMMARY (Conl'd)
INSTRUCTION
MNEMONIC
BRANCH INSTRUCTIONS-SHORT BRANCH
SHORT BRANCH IF EF4=1
(EF4=VSS)
SHORT BRANCH IF EF4=0
(EF4=VCC)
B4
BN4
BRANCH INSTRUCTIONS-LONG BRANCH
LONG BRANCH
LBR
NO LONG BRANCH (SEE LSKP)
LONG BRANCH IF D=O
NLBR
LBZ
LONG BRANCH IF D NOT 0
LBNZ
LONG BRANCH IF DF=1
LBDF
LONG BRANCH IF DF=O
LBNF
LONG BRANCH IF 0=1
LBO
LONG BRANCH IF 0=0
LBNO
SKIP INSTRUCTIONS
SHORT SKIP (SEE NBR)
LONG SKIP (SEE NLBR)
LONG SKIP IF D=O
LONG SKIP IF D NOT 0
LONG SKIP IF OF=1
LONG SKIP IF OF=O
LONG SKIP IF 0=1
LONG SKIP IF 0=0
LONG SKIP IF IE=1
SKP
LSKP
LSZ
LSNZ
LSDF
LSNF
LSO
LSNO
LSIE
OP
CODE
OPERATION
37 IF EF4=1, M(R(P»-R(P).O
ELSE R(P)+1-R(P)
3F IF EF4=0, M(R(P»-R(P).O
ELSE R(P)+1-R(P)
CO M(R(P»-R(P).1
M(R(P)+1 )-R(P).O
CS§ R(P)+2-R(P)
C2 IF D=O, M(R(P»-R(P).1
M(R(P)+1 )-R(P).O
ELSE R(P)+2-R(P)
CA IF D NOT 0, M(R(P»-R(P).1
M(R(P)+1)-R(P).0
ELSE R(P)+2-R(P)
C3 IF OF=1, M(R(P»-R(P).1
M(R(P)+1 )-R(P).O
ELSE R(P)+2-R(P)
CB IF OF=O, M(R(P))-R(P).1
M(R(P)+1)-R(P).0
ELSE R(P)+2-R(P)
C1 IF 0=1, M(R(P))-R(P).1
M(R(P)+1)-R(R).0
ELSE R(P)+2-R(P)
C9 IF 0=0, M(R(P))-R(P).1
M(R(P)+1 )-R(P).O
ELSE R(P)+2-R(P)
3S§ R(P)+1-R(P)
CS§ R(P)+2-R(P)
CE IF 0=0, R(P)+2-R(P)
ELSE CONTINUE
C6 IF 0 NOT 0, R(P)+2-R(P)
ELSE CONTINUE
CF IF OF=1, R(P)+2-R(P)
ELSE CONTINUE
C7 IF OF=O, R(P)+2-R(P)
ELSE CONTINUE
CO IF 0=1, R(P)+2-R(P)
ELSE CONTINUE
C5 IF 0=0, R(P)+2-R(P)
ELSE CONTINUE
CC IF IE=1, R(P)+2-R(P)
ELSE CONTINUE
_____________________________________________________________ 49

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