Specifications ispLSI 2032VE

11

Signal Descriptions

GOE 0

Global Output Enable input pin

Y0

Dedicated Clock input. This clock input is connected to one of the clock inputs of all the GLBs in the

device.

RESET/Y1

This pin performs two functions: (1) Active Low (0) Reset pin which resets all of the registers in the

device. (2) Dedicated Clock input.

BSCAN

Input – Dedicated in-system programming Boundary Scan enable input pin. This pin is brought low to

enable the programming mode. The TMS, TDI, TDO and TCK controls become active.

TDI/IN 0

Input – This pin performs two functions. (1) When BSCAN is logic low, it functions as a serial data input

pin to load programming data into the device. (2) When BSCAN is high, it functions as a dedicated input

pin.

Input – This pin performs two functions. (1) When BSCAN is logic low, it functions as a mode control pin

for the Boundary Scan state machine. (2) When BSCAN is high, this pin is not to be connected to any

active signals, VCC or GND.

TDO/IN 1

Output/Input – This pin performs two functions. (1) When BSCAN is logic low, it functions as an output

pin to read serial shift register data. (2) When BSCAN is high, it functions as a dedicated input pin.

TCK/Y2

Input – This pin performs two functions. (1) When BSCAN is logic low, it functions as a clock pin for the

Boundary Scan state machine. (2) When BSCAN is high, it functions as a Dedicated Clock input.

GND

Ground (GND)

VCC

Vcc

No Connect

I/O

Input/Output pins – These are the general purpose I/O pins used by the logic array.

Signal Name

Description

GOE 0

40

2

43

A4

Y0

5

11

5

C1

RESET/Y1

29

35

31

D7

BSCAN

713

7D1

TDI/IN 0

8

14

8

E2

30

36

32

C6

TDO/IN 1

18

24

19

G4

TCK/Y2

27

33

29

E7

GND

17, 39

1, 23

18, 42

C4, E4

VCC

6, 28

12, 34

6, 30

D3, D5

—

—

12, 24, 36, 48

A1, A7, D4, G1, G7

Signal

44-Pin TQFP

44-Pin PLCC

48-Pin TQFP

49-Ball caBGA

1. NC pins are not to be connected to any active signals, VCC or GND.

Signal Locations

I/O Locations

Signal

44-Pin TQFP

44-Pin PLCC

48-Pin TQFP

49-Ball caBGA

I/O 0 - I/O 6

9, 10, 11, 12, 13, 14, 15

15, 16, 17, 18, 19, 20, 21

9, 10, 11, 13, 14, 15, 16

E1, F2, F1, E3, F3, G2, F4

I/O 7 - I/O 13

16, 19, 20, 21, 22, 23, 24

22, 25, 26, 27, 28, 29, 30

17, 20, 21, 22, 23, 25, 26

G3, F5, G5, F6, G6, E5, E6

I/O 14 - I/O 20

25, 26, 31, 32, 33, 34, 35

31, 32, 37, 38, 39, 40, 41

27, 28, 33, 34, 35, 37, 38

F7, D6, C7, B6, B7, C5, B5

I/O 21 - I/O 27

36, 37, 38, 41, 42, 43, 44

42, 43, 44, 3, 4, 5, 6

39, 40, 41, 44, 45, 46, 47

A6, B4, A5, B3, A3, B2, A2

I/O 28 - I/O 31

1, 2, 3, 4

7, 8, 9, 10

1, 2, 3, 4

C3, C2, B1, D2