PSD913F1 STMICROELECTRONICS [STMicroelectronics], PSD913F1 Datasheet - Page 44

• Manufacturer Part Number: PSD913F1
• Description: Flash In-System Programmable ISP Peripherals For 8-bit MCUs
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

40
PSD9XX Family
Figure 16. Interfacing the PSD9XX to the 80C251, with Read and PSEN Inputs
Figure 17. Interfacing the PSD9XX to the 80C51XA, 8-Bit Data Bus
RESET
RESET
RESET
13
16
35
20
14
15
17
10
21
11
2
4
6
9
3
5
7
8
80C251SB
P1.1
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
P1.6
X1
X2
RST
EA
P1.0
P1.2
P1.3
P1.4
P1.5
P1.7
10
14
15
17
35
21
20
11
13
16
6
7
9
8
80C51XA
XTAL1
XTAL2
RXD0
TXD0
RXD1
T2EX
T2
T0
RST
INT0
INT1
EA/WAIT
BUSW
TXD1
RD/A16
PSEN
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.5
P2.6
P2.7
P2.4
ALE
A0/WRH
RESET
WR
A17D13
A14D10
A15D11
A16D12
A18D14
A19D15
A10D6
A11D7
A12D8
A13D9
PSEN
A4D0
A5D1
A6D2
A7D3
A8D4
A9D5
WRL
ALE
RD
A1
A2
A3
18
19
43
42
41
40
39
38
37
36
24
25
26
27
28
29
30
31
33
32
RESET
29
30
2
3
4
5
43
42
41
40
39
38
37
36
24
25
26
28
31
27
19
32
18
33
A0
A1
A2
A3
A4D0
A6D2
A7D3
A8D4
A5D1
A9D5
A10D6
A11D7
A12
A13
A14
A15
A17
A18
A19
A16
A1
A4
AD9
AD10
AD11
AD12
AD13
AD14
ALE
RD
WR
PSEN
A0
A2
A3
A5
A6
A7
AD8
AD15
PSEN
ALE
WR
RD
A4D0
A5D1
A6D2
A7D3
A8D4
A9D5
A12
A13
A14
A15
A16
A17
A18
A10D6
A19
A11D7
A0
A1
A2
A3
A4
A5
A6
A7
AD8
AD9
AD10
AD12
AD13
AD14
AD11
AD15
46
30
31
32
33
34
35
36
37
39
40
41
42
43
44
45
47
50
49
10
48
8
9
PSD9XXF
ADIO0
ADIO1
ADIO2
ADIO3
AD104
AD105
ADIO6
ADIO7
ADIO8
ADIO9
ADIO10
ADIO11
AD1012
AD1013
ADIO14
ADIO15
CNTL0 ( WR )
CNTL1 ( RD )
CNTL 2(PSEN)
PD0-ALE
PD1
PD2
RESET
30
31
32
33
34
35
36
37
39
40
41
42
43
44
46
50
49
48
45
47
10
9
8
PSD9XXF
ADIO0
ADIO1
ADIO2
ADIO3
ADIO4
ADIO5
ADIO6
ADIO7
ADIO8
ADIO9
ADIO10
ADIO11
ADIO12
ADIO13
ADIO14
ADIO15
CNTL0 ( WR )
CNTL1 ( RD )
CNTL 2(PSEN)
PD0- ALE
PD1
PD2
RESET
Preliminary Information
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB5
PB6
PB7
PB4
51
20
19
18
17
14
13
12
11
29
28
27
25
24
23
22
7
6
5
4
3
2
52
21
PC2
PC0
PC1
PC3
PC4
PC5
PC6
PC7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
A0
A1
A2
A3
19
18
17
14
13
12
11
29
28
27
25
24
23
22
6
5
4
3
2
52
20
21
7
51