PIN DESCRIPTION (Continued)

I/O PORT

Name

Function

Alternate Function

Pin Assignment

Port.bit

9294J

9294N

P3.4

I/O

14

19

P3.5

I/O

13

18

P3.6

I/O

12

17

P3.7

I/O

-

16

P4.0

PWM0

O

PWM Output 0

28

35

P4.1

PWM1

O

PWM Output 1

29

36

P4.2

PWM2

O

PWM Output 2

30

37

P4.3

PWM3

O

PWM Output 3

31

38

P4.4

PWM4

O

PWM Output 4

32

39

P4.5

PWM5

O

PWM Output 5

33

40

P4.6

PWM6

O

PWM Output 6

34

41

P4.7

PWM7

O

PWM Output 7

35

42

P4.7

EXTRG

I

A/D External Trigger

35

42

P5.0

SCK

O

SPI Serial Clock

(1)

20

27

P5.0

INT2

I

External Interrupt 2

(1)

20

27

P5.1

SDIO

O

SPI Serial Data Input/Output

(1)

19

26

P5.2

I/O

-

25

P5.3

I/O

-

24

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.

Table 1-1. ST9294 I/O Port Alternative Function Summary

Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the

consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No

license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned

in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.

SGS-THOMSON Microelectronics products are not authorized for use as critical components in life support devices or systems without the

express written approval of SGS-THOMSON Microelectronics.

© 1995 SGS-THOMSON Microelectronics - All rights reserved.

Purchase of I

2

C Components by SGS-THOMSON Microelectronics conveys a license under the Philips I

2

C Patent.

Rights to use these components in an I

2

C system is granted provided that the system

conforms to the I

2

C Standard Specification as defined by Philips.

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®

ST9294

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