4

Z90341

PRELIMINARY

CP97TEL2500

Zilog

PIN DESCRIPTION

Z89313

Pin

Z90341

Configuration

Name

Function

52-Pin

Direction

Reset

V

a

+5 V

39,22

PWR

–

GND, AGND,

0 V

38,21,15,40

PWR

–

IRIN

Infrared Remote Capture Input

2

I

I

ADC[5:1]

4-Bit Analog-to-Digital Converter

16,17,18,19,20

AI

I

Input

PWM[6:1]

8-Bit Pulse Width Modulator

46,45,44,43,42,41

O

O

Output

Port0[F:0]

Bit Programmable Input/Output Ports

23,32,7,3,4,5,6,48,8,9,18,

B

I

17,10,12,11,19

Port1[8:0]

Bit Programmable Input/Output Ports

49,20,1,52,51,50,30,

B

I

31,47

SCL

11,31,34

BOD

SCD

12,30,33

BOD

XTAL1

Crystal Oscillator Input

36

AI

I

XTAL2

Crystal Oscillator Output

37

AO

O

LPF

Loop Filter

14

AB

O

HSYNC

H_Sync

28,46

B

I

VSYNC

V_Sync

29

B

I

/RESET

Device Reset

35

I

I

V[3:1]

OSD Video Output

24,25,26

O

O

(Typically Drive B, G, and R Outputs)

Blank

OSD Blank Output

27

O

O

Semi transparent

OSD Semi transparent Output

23

O

SCLK

Internal Processor SCLK

–

O

Notes:

Please refer to pin-out diagram for shared pin numbers.

a) AV

b) AGND is for the reference ground of the ADC input.

AGNDF is for LPF ground, and AGNDX is for XTAL circuit ground.