參數(shù)資料
型號: CDP1802A
廠商: Intersil Corporation
元件分類: 8位微控制器
英文描述: CMOS 8-Bit Microprocessors
中文描述: 的CMOS 8位微處理器
文件頁數(shù): 25/27頁
文件大?。?/td> 115K
代理商: CDP1802A
3-27
TABLE 2. CONDITIONS ON DATA BUS AND MEMORY ADDRESS LINES DURING ALL MACHINE STATES
STATE
I
N
SYMBOL
OPERATION
DATA
BUS
MEMORY
ADDRESS
MRD
MWR
N
LINES
NOTES
S1
RESET
0
I, N, Q, X, P; 1
lE
00
XXXX
1
1
0
1
Initialize, Not Programmer
Accessible
0000
R
00
XXXX
1
1
0
2
S0
FETCH
MRP
l, N; RP + 1
RP
MRP
RP
0
1
0
3
S1
0
0
lDL
IDLE
MR0
RO
0
1
0
4, Fig. 8
0
1 - F
LDN
MRN
D
MRN
RN
0
1
0
Fig. 8
1
0 - F
INC
RN + 1
RN
Float
RN
1
1
0
Fig. 6
2
0 - F
DEC
RN - 1
RN
Float
RN
1
1
0
Fig. 6
3
0 - F
Short Branch
Taken: MRP
RP.0
Not Taken; RP + 1
RP
MRP
RP
0
1
0
Fig. 8
4
0 - F
LDA
MRN
D; RN + 1
RN
MRN
RN
0
1
0
Fig. 8
5
0 - F
STR
D
MRN
D
RN
1
0
0
Fig. 7
6
0
IRX
RX + 1
RX
MRX
RX
0
1
0
Fig. 7
6
1
OUT 1
MRX
BUS; RX + 1
RX
MRX
RX
0
1
1
Fig. 11
2
OUT 2
2
Fig. 11
3
OUT 3
3
Fig. 11
4
OUT 4
4
Fig. 11
5
OUT 5
5
Fig. 11
6
OUT 6
6
Fig. 11
7
OUT 7
7
Fig. 11
9
INP 1
BUS
MRX, D
Data from
I/O Device
RX
1
0
1
Fig. 10
A
INP 2
2
Fig. 10
B
INP 3
3
Fig. 10
C
INP 4
4
Fig. 10
D
INP5
5
Fig. 10
E
INP6
6
Fig. 10
F
INP7
7
Fig. 10
7
0
RET
MRX
(X, P); RX + 1
RX;
1
lE
MRX
RX
0
1
0
Fig. 8
1
DlS
MRX
(X, P); RX + 1
RX;
0
lE
MRX
RX
0
1
0
Fig. 8
2
LDXA
MRX
D; RX + 1
RX
MRX
RX
0
1
0
Fig. 8
3
STXD
D
MRX; RX - 1
RX
D
RX
1
0
0
Fig. 7
4
ADC
MRX + D + DF
DF, D
MRX
RX
0
1
0
Fig. 8
5
SDB
MRX - D - DFN
DF, D
MRX
RX
0
1
0
Fig. 8
6
SHRC
LSB(D)
DF; DF
MSB(D)
Float
RX
1
1
0
Fig. 6
7
SMB
D - MRX - DFN
DF, D
MRX
RX
0
1
0
Fig. 8
8
SAV
T
MRX
T
RX
1
0
0
Fig. 7
CDP1802A, CDP1802AC, CDP1802BC
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