Z87L01 datasheet(2/51 Pages) ZILOG

2 / 51 page

Z87001/Z87L01

ROMless Spread Spectrum Cordless Phone Controller

Zilog

P R E L I M I N A R Y

DS96WRL0800

GENERAL DESCRIPTION (Continued)

plexing of the 32 kbps voice data and 4 kbps command

data between handset and base station. The Z87001 pro-

vides thirty-two I/O pins, including four wake-up inputs and

two CPU interrupt inputs. These programmable I/O pins al-

low a variety of user-determined phone features and board

layout configurations. Additionally, the pins may be used

so that phone features and interfaces are supported by an

optional microcontroller rather than by the Z87001’s DSP

core.

In combination with an RF section designed according to

the system specifications, Zilog’s Z87010/Z87L10 ADPCM

Processor, a standard 8-bit PCM telephone codec and

minimal additional phone circuity, the Z87001 and its em-

bedded software provide a total system solution.

Figure 1. System Block Diagram of a Z87001/Z87010 Based Phone

Z87010

ADPCM

Processor

Z87001

Spread

Spectrum

Controller

RF Section

Z87010

ADPCM

Processor

Z87001

Spread

Spectrum

Controller

RF Section

Telephone

Line

Interface

Base Station

Handset

Codec

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