CDP1802AC/3 Ver la hoja de datos (PDF) - Intersil
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CDP1802AC/3 Datasheet PDF : 27 Pages
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CDP1802AC/3
STATE
S1
S0
S1
TABLE 5. CONDITIONS ON DATA BUS AND MEMORY ADDRESS LINES DURING ALL MACHINE STATES
IN
SYMBOL
OPERATION
DATA
BUS
MEMORY
ADDRESS MRD
MWR
N
LINES
RESET
0 I, N, Q, X, P; 1 lE
00
XXXX
1
1
0
Initialize, Not Programmer 0000 R
Accessible
00
XXXX
1
1
0
FETCH
MRP l, N; RP + 1 RP
MRP
RP
0
1
0
00
lDL
IDLE
MR0
RO
0
1
0
0 1-F
LDN
MRN D
MRN
RN
0
1
0
1 0-F
INC
RN + 1 RN
Float
RN
1
1
0
2 0-F
DEC
RN - 1 RN
Float
RN
1
1
0
3 0 - F Short Branch Taken: MRP RP.0
Not Taken; RP + 1 RP
MRP
RP
0
1
0
4 0-F
LDA
MRN D; RN + 1 RN
MRN
RN
0
1
0
5 0-F
STR
D MRN
D
RN
1
0
0
60
IRX
RX + 1 RX
MRX
RX
0
1
0
61
OUT 1
MRX BUS; RX + 1 RX
MRX
RX
0
1
1
2
OUT 2
2
3
OUT 3
3
4
OUT 4
4
5
OUT 5
5
6
OUT 6
6
7
OUT 7
7
9
INP 1
BUS MRX, D
A
INP 2
Data from
RX
1
0
1
I/O Device
2
B
INP 3
3
C
INP 4
4
D
INP5
5
E
INP6
6
F
INP7
7
70
RET
MRX (X, P); RX + 1 RX;
MRX
RX
0
1
0
1 lE
1
DlS
MRX (X, P); RX + 1 RX;
MRX
RX
0
1
0
0 lE
2
LDXA
MRX D; RX + 1 RX
MRX
RX
0
1
0
3
STXD
D MRX; RX - 1 RX
D
RX
1
0
0
4
ADC
MRX + D + DF DF, D
MRX
RX
0
1
0
5
SDB
MRX - D - DFN DF, D
MRX
RX
0
1
0
6
SHRC
LSB(D) DF; DF MSB(D)
Float
RX
1
1
0
7
SMB
D - MRX - DFN DF, D
MRX
RX
0
1
0
8
SAV
T MRX
T
RX
1
0
0
NOTES
17
18
19
20, Fig. 6
Fig. 6
Fig. 4
Fig. 4
Fig. 6
Fig. 6
Fig. 5
Fig. 5
Fig. 9
Fig. 9
Fig. 9
Fig. 9
Fig. 9
Fig. 9
Fig. 9
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 8
Fig. 6
Fig. 6
Fig. 6
Fig. 5
Fig. 6
Fig. 6
Fig. 4
Fig. 6
Fig. 5
FN1441 Rev 3.00
October 17, 2008
Page 23 of 27
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