psd813f1a-90ut STMicroelectronics, psd813f1a-90ut Datasheet - Page 42

• Manufacturer Part Number: psd813f1a-90ut
• Description: Flash In-system Programmable Isp Peripherals For 8-bit Mcus
• Manufacturer: STMicroelectronics

Preliminary
Figure 16. Interfacing the PSD913F1 with an 80C31
Figure 17. Interfacing the PSD913F1 to the 80C251, with One Read Input
RESET
RESET
RESET
RESET
A17
**Connection is optional.
**Non-page mode: AD[7:0] - ADIO[7:0].
20
13
14
15
16
17
10
35
21
11
2
4
6
9
3
5
7
8
80C251SB
P3.3/INT1
P3.4/T0
P3.5/T1
RST
EA
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P3.0/RXD
P3.1/TXD
P3.2/INT0
X1
X2
12
13
14
15
19
18
31
9
2
3
4
5
6
7
8
1
80C31
EA/VP
X1
X2
RESET
INT0
INT1
T0
T1
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
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
P2.4
P2.5
P2.6
P2.7
ALE
WR
ALE/P
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
P2.4
P2.5
P2.6
P2.7
RXD
TXD
WR
RD
43
42
41
40
39
38
37
24
25
27
33
32
18
19
36
26
28
29
30
31
RESET
RESET
17
16
11
10
39
38
37
36
35
34
33
32
21
22
23
24
25
26
27
28
29
30
A4
AD10
AD12
AD14
A0
A1
A2
A3
A5
A6
A7
AD8
AD9
AD11
AD13
AD15
ALE
RD
WR
A16
RD
WR
PSEN
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
A8
A9
A10
A11
A12
A13
A14
A15
ALE
A0
A1
A2
A3
A4
A5
A6
A7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
30
31
32
33
34
35
36
37
42
39
40
41
43
44
45
46
47
50
49
10
48
8
30
31
32
33
34
35
36
37
39
40
41
42
43
44
46
50
49
10
48
9
45
47
9
8
PSD913F1
PSD913F1
ADIO0
ADIO1
ADIO2
ADIO3
ADIO4
ADIO5
ADIO6
ADIO7
ADIO8
ADIO9
ADIO10
ADIO11
ADIO12
ADIO13
ADIO14
ADIO15
CNTL0 (WR)
CNTL1(RD)
CNTL2 (PSEN)
PD0-ALE
PD1
PD2
RESET
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
AD [ 7:0 ]
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC3
PC4
PC5
PC6
PC7
PC2
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
29
28
27
25
24
23
22
21
19
18
17
14
13
12
11
7
6
5
4
3
2
52
51
20
29
28
27
25
24
23
22
6
5
4
3
2
52
20
19
18
17
14
13
12
11
21
7
51
A16
PSD913F1
AD [ 7:0 ]
*
A17
*
41