Pin Name

Attribute

Description

Pin #

Nreset

I

-ve reset

1

VDD

I

3.3V

2

OSCI

I

Crystal input

3

OSCO

O

Crystal Output

4

CLKO

O

48MHZ

5

VSS

I

GND

6

VSS

I

GND

7

PADM

IO

USB D-

8

PADP

IO

USB D+

9

VDD

I

3.3V

10

P0_7(FD7)

IO

Flash data bus bit 7

11

P0_6(FD6)

IO

Flash data bus bit 6

12

P0_5(FD5)

IO

Flash data bus bit 5

13

P0_4(FD4)

IO

Flash data bus bit 4

14

P0_3(FD3)

IO

Flash data bus bit 3

15

P0_2(FD2)

IO

Flash data bus bit 2

16

P0_1(FD1)

IO

Flash data bus bit 1

17

P0_0(FD0)

IO

Flash data bus bit 0

18

P1_7(FWP)

O

Flash write protect

19

P1_6(FCLE)

O

Flash command latch enable

20

P1_5(FEW)

O

Flash write enable

21

P1_4(FALE)

O

Flash address latch enable

22

P1_3(FRE)

O

Flash read enable

23

VSS

I

GND

24

P1_2(FCE)

O

Flash chip select

25

P1_1

O

Extended output

26

P1_0

O

Extended output

27

TEST

I

Test enable

28

MODE0

I

MODE SELECT

29

MODE1

I

MODE SELECT

30

P3_0

IO

USER IO

31

P3_1

IO

USER IO

32

VDD

I

3.3V

33

VSS

I

GND

34

P3_2

IO

USER IO

35

P3_3

IO

USER IO

36

VSS

I

GND

37

 VDD

I

3.3V

38

P3_4

IO

LED

39

P3_5

IO

LED

40

P2_0

IO

USER IO

41

P2_1

IO

USER IO

42

P2_2

IO

USER IO

43

P2_3

IO

USER IO

44

P2_4

IO

USER IO

45

P2_5

IO

USER IO

46

P2_6

IO

USER IO

47

P2_7

IO

USER IO

48