MSP50C605

MIXED-SIGNAL PROCESSOR

SPSS025B– FEBRUARY 2000 – REVISED FEBRUARY 2001

4

POST OFFICE BOX 655303

Terminal Functions

NAME

PIN NO.

PAD NO.

I/O

DESCRIPTION

Input/Output Ports

PC0 – PC7

89 – 82

8 – 1

I/O

Port C general-purpose I/O

(1 Byte)

PD0 – PD7

99 – 92

18 – 11

I/O

Port D general-purpose I/O

(1 Byte)

PE0 – PE7

46 – 39

48 – 41

I/O

Port E general-purpose I/O

(1 Byte)

PF0 – PF7

16 – 9

31 – 24

I

Port F key-scan input

(1 Byte)

Pins PD4 and PD5 may be dedicated to the comparator function, if the comparator enable bit is set.

Refer to Section 3.3, Comparator, for details.

Scan Port Control Signals

SCANIN

37

39

I

Scan port data input

SCANOUT

33

35

O

Scan port data output

SCANCLK

36

38

I

Scan port clock

SYNC

35

37

I

Scan port synchronization

TEST

34

36

I

C605: test modes

The scan port pins must be bonded out on any MSP50C605 production board.

Consult the Important Note regarding Scan Port Bond Out, see Chapter 7 in the MSP50C614 User’s Guide (SPSU014).

Reference Oscillator Signals

OSCOUT

49

51

O

Resistor/crystal reference out

OSCIN

48

50

I

Resistor/crystal reference in

PLL

47

49

O

Phase-lock-loop filter

Digital-to-Analog Sound Output

DACP

7

22

O

Digital-to-analog plus output (+)

DACM

5

20

O

Digital-to-analog minus output (–)

Initialization

RESET

38

40

I

Initialization

Power Signals

VSS

17, 50, 90,

100†

32, 52, 9,

19†

Ground

VDD

6†, 8, 31,

32, 91

21†, 23,

33, 34, 10

Processor power (+)

† The VSS and VDD connections service the DACcircuitry.Theirpinstendtosustainahighercurrentdraw.Adedicateddecouplingcapacitoracross

these pins is therefore required.