ST9291 ST Microelectronics, ST9291 Datasheet - Page 6

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

ST9291
PIN DESCRIPTION (Continued)
Table 1. ST9291 I/O Port Alternative Function Summary (Continued)
Notes.
1. The alternate functions of SCK/INT2 and SDIO may be swapped by using the SWAP Register Function.
2. Schmitt trigger options are available as a mask option for any input pin.
6/20
P3.4
P3.5
P3.6
P3.7
P4.0
P4.1
P4.2
P4.3
P4.4
P4.5
P4.6
P4.7
P4.7
P5.0
P5.0
P5.1
P5.2
P5.3
I/O PORT
Port.bit
PWM0
PWM1
PWM2
PWM3
PWM4
PWM5
PWM6
PWM7
EXTRG
SCK
INT2
SDIO
Name
Function
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
O
O
O
I
I
PWM Output 0
PWM Output 1
PWM Output 2
PWM Output 3
PWM Output 4
PWM Output 5
PWM Output 6
PWM Output 7
A/D External Trigger
SPI Serial Clock
External Interrupt 2
SPI Serial Data Input/Output
Alternate Function
(1)
(1)
(1)
9291J
14
13
12
28
29
30
31
32
33
34
35
35
20
20
19
Pin Assignment
-
-
-
9291N
19
18
17
16
35
36
37
38
39
40
41
42
42
27
27
26
25
24