|
|
PDF UPD8021 Data sheet ( Hoja de datos )
| Número de pieza | UPD8021 | |
| Descripción | SINGLE CHIP 8-BIT MICROCOMPUTER | |
| Fabricantes | NEC | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de UPD8021 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
|
No Preview Available !
NEe Microcomputers, Inc.
NEe
ILPD8021
SINGLE CHIP 8·BIT
MICROCOMPUTER
DESCRIPTION
The NECIlPD8021 is a stand alone 8-bit parallel microcomputer incorporating the
following features usually found in external peripherals. The IlPD8021 contains:
1K x 8 bits of mask ROM program memory, 64 x 8 bits of RAM data memory, 21
I/O lines, an B-bit interval timer/event counter, and internal clock circuitry.
FEATURES
• 8-Bit Processor, ROM, RAM, I/O, Timer/Counter
• Single +5V Supply (+4.5V to +6.5V)
• NMOS Silicon Gate Technology
• 8.381ls Instruction Cycle Time
• All Instructions 1 or 2 Cycles
• Instructions are Subset of IlPD8048/8748/8035
• High Current Drive Capability - 2 I/O Pins
• Clock Generation Using Crystal or Single Inductor
• Zero-Cross Detection Capabil ity
• Expandable I/O Using 1l8243's
• Available in 28 Pin Plastic Package
PIN CONFIGURATION
Pn
P23
PROG
PO~
P01
P02
P03
P04
P07
ALE
T1
VSS
JlPD
8021
vee
P21
26 P20
25 P17
24 P16
23 P15
22 P14
21 P13
20 P12
19 Pll
18 PlO
17 RESET
16 XTAL2
15 XTAL 1
Rev/1
303
1 page  
iNSTRUCTION SET
p.PD8021
MNEMONIC
ADD A, = data
Add A, Ar
ADDA,@Rr
ADDC A, = data
ADDe A, Ar
ADDC A,@Rr
ANL A, "" data
ANL A, Rr
ANL A,@Rr
CPL A
CLR A
DAA
DECA
INCA
ORL A, '" data
ORLA,Rr
ORL A@Rr
RL A
RLCA
RR A
RRCA
SWAP A
XRL A, '" data
XRL A, Rr
XRl A,@Rr
DJNZ Ar, addr
JC addr
JMP addr
JMPP@A
JNC addr
JNT1 addr
JNZ addr
JTF addr
JTl addr
JZ addr
FUNCTION
DESCRIPTION
INSTRUCTION CODE
07 06 D. DO 03 02 0, DO
(AI <- (A) + data
(AI +-- (AI + (Ar)
forr=0-7
(A) +-- (AI + ((Rd)
for r"'" 0 - 1
(AI +-- (A) + te) + data
(AI <-- (AI + (e) + (Ar)
forr;0-7
(AI +- (AI + (e) + ((Ar))
for r '" 0 - 1
, ,ACCUMULATOR
Add immediate the specified Data to the 0 0 0 0 0 0
Accumulator.
Add contents of designated register to
, , ,d7 d6 d. do d3 d2 d, dO
0 0 ,,,
the Accumulator.
Add indirect the contents the data
, , ,0 0 0 0 0
,memory location to the Accumulator.
Add immediate with carry the specified 0 0 0
00 11
data to the Accumulator.
Add with carry the contents of the
, , ,d7 d6 d. dO d3 d2 d, dO
01111
,designated register to the Accumulator.
Add Indirect with carry the contents of 0 1 1 1 0 0 0
data memory location to the
Accumulator.
(A) - (A) AND data
(A) <- (A) AND (Rr)
for r '" 0 - 7
(AI - (AI AND ((Rd)
for r '" 0 - 1
Logical and specified Immediate Data
0 1 0 10 0 11
with Accumulator.
Logical and contents of designated
, , , ,d7 d6 d. dO d3 d2 dl dO
0 0 11
register with Accumulator.
,Logical and Indirect the contents of data 0 1 0 1 0 0 0
memory with Accumulator.
(AI +- NOT (AI
Complement the contents of the
Accumulator.
0 0 1 10 111
IAI-O
CLEAR the contents of the Accumulator. 0 0 1 0 0 1 1 1
DECIMAL ADJUST the contents of the
0
1
0
1
0
1
1
1
Accumulator.
IAI-IAI-l
DECREMENT by 1 the Accumulator's
contents.
00000 111
(AI _(A) + 1
Increment by 1 the Accumulator's
contents.
00 0 10 1 11
(A) <- (A) OR data
(AI - (A) OR (Rr)
for r '" 0 - 7
IAI- IAI OR IIRdl
for r '" 0-1
Logical OR specified immediate data
0 10 0 0 0 11
with Accumulator
Logical OR contents of designated
, , ,d7 d6 d5 dO d3 d2 dl dO
0 100 1
register with Accumulator.
,Logical OR Indirect the contents of data 0 1 0 G 0 0 0
memory location with Accumulator.
(AN + 1)_ (AN)
IAOI- IA71
forN"'O-6
Rotate Accumulator left by '-bit with·
out carry.
11 100 111
(AN + 11- (AN); N '" 0-6 Rotate Accumulator left by '-bit through 1 1 1 1 0 1 1 1
IAOI-ICI
carry.
ICI- IA71
(AN) <- (AN + 1);N",O-6
IA71- IAOI
Rotate Accumulator right by l-bit
without carry.
0 1 1 10 1 11
(AN) - {AN +11; N =0-6
IA71-ICI
ICI-IAOI
(A4_7) ~ (AD - 3)
Rotate Accumulator right by l-bit
through carry.
Swap the 24·bit nibbles in the
Accu mu lator.
0 1 100 111
0 10 00 1 11
(AI - (A) XOR data
(A) +- (A) XOR (Rr)
forr=0-7
(A) <- (A) XOR ((Rd)
for r =0-1
Logical XOR specified immediate data
1 1 0 1 0 01 1
with Accumulator.
Logical XOR contents of designated
, , ,d7 d6 d5 dO d3 d2 d, dO
110 1 1
register with Accumulator.
,Logical XOR Indirect the contents of dats 1 1 0 1 0 0 0
memory location with Accumulator.
(Ad- (Rrl-l r-0-7
If (Ad *- 0
(PC 0 - 7) - addr
BRANCH
Decrement the specified register and
test contents.
'.1 1
'7 '6
10 1 ,,,
""'0 '3 '2 '1
(PC 0 - 7) +- addr if C = 1
(PC) <- (PC) + 2 if C = 0
(PCS-1O)+-addrS-l0
(PC 0 - 7) +-addr 0-7
(PC1l)-DBF
(PC 0 - 71 +- ((A))
Jump to specified address if carry flag
is set
Direct Jump to specified address within
the 2K address block.
Jump indirect to specified address witn
1 1 1 10 1 10
'7 '6
'0 '3 '2 '1 '0
. ''.. .'" '"0 '8 0 0 1 0 0
""'7 83 '2 '1
,1 0 1 1 0 0
1
address page.
, ,(PC 0 - 7) - addr if C = 0
(PC) +- (PCI + 2 if C = 1
Jump to specified address if carry flag is
1
low.
'7 86
0 0 1 10
'0 '3 82 81 '0
'.(PCO-71 +-addr ifn '" 0 Jump to specified address if Test 1 is low. 0 1 0 0 0 1 1 0
.. .(PC) - (PC) + 2 if T1 = 1
'7 '3 '2 '1
'. '"(PC 0 - 7) +- addr if A '" 0
.(PC) +- (PC) + 2 if A =0
Jump to specified address if
ACC1Jmulator is non-zero.
10
'7 '6
0
10 11
'3 '2 '1
0
. '. ""(PC 0 - 7) -addr ifTF = 1 Jump to specified address if Timer Flag 0 0
(PC) +- (PC) + 2 if TF = a
is set to 1.
'7
0 1 0 1 10
'0 83 82 '1 '0
'.(PC 0 - 7) +- addr if T1 = 1 Jump to specified address if Test 1 is a 1. 0 1 0 1 0 1 1 0
..(PC) +- (PC) + 2 if T1 '" 0
'7
80 '3 '2
'0
.. '. "(PCa - 7) -addr if A = 0
Jump to specified address if Accumulator 1
1
0
0
0
1
10
'. .(PC) +- (PC) + 2 if A = 0
ISO.
'7 "3 '2 81 '0
CYCLES
2
,
,
2
1
,
2
1
1
1
,
1
,
,
2
1
1
,
1
1
,
1
2
1
1
2
2
2
2
2
2
2
2
2
2
BYTES
2
,
,
2
1
,
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
2
1
1
2
2
2
,
2
2
2
2
2
2
FLAG
C
·
·····
·
·
·
II
307
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet UPD8021.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| UPD8021 | SINGLE CHIP 8-BIT MICROCOMPUTER | NEC |
| UPD8022 | SINGLE CHIP 8-BIT MICROCOMPUTER | NEC |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |