ST9291 ST Microelectronics, ST9291 Datasheet - Page 5

• Manufacturer Part Number: ST9291
• Description: 16-48K ROM HCMOS MCU WITH ON SCREEN DISPLAY AND VOLTAGE TUNINGOUTPUT
• Manufacturer: ST Microelectronics

PIN DESCRIPTION (Continued)
Table 1.ST9291 I/O Port Alternative Function Summary
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.1
P2.2
P2.2
P2.3
P2.3
P2.4
P2.5
P2.5
P3.0
P3.1
P3.2
P3.3
I/O PORT
Port.bit
INT7
INT5
AIN1
INT0
AIN2
INT6
VSO1
NMI
AIN3
VSO2
FB
R
G
B
Name
Function
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
External Interrupt 7 with Schmitt Trigger
External Interrupt 5 with Schmitt Trigger
A/D Analog Input 1
External Interrupt 0
A/D Analog Input 2
External Interrupt 6
Voltage Synthesis Output 1
Non-Maskable Interrupt
A/D Analog Input 3
Voltage Synthesis Output 2
Fast Blanking OSD output
Red Video Colour OSD output
Green Video Colour OSD output
Blue Video Colour OSD output
Alternate Function
9291J
10
42
42
41
41
40
40
39
38
38
18
17
16
15
Pin Assignment
9
8
7
6
5
4
3
1
-
-
-
-
-
-
-
-
9291N
ST9291
12
11
10
52
51
50
49
48
47
46
45
56
56
55
55
54
53
53
23
22
21
20
9
8
6
5
4
2
1
1
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