TDA8029HLSLASHC2 datasheet(7/58 Pages) PHILIPS

7 / 58 page

2003 Oct 30

Philips Semiconductors

Product speciﬁcation

Low power single card reader

TDA8029

handbook, full pagewidth

TDA8029HL

FCE870

P17

P16

VDD

GND

SDWN_N

CDEL

I/O

PRES

P27

PSEN_N

ALE

EA_N

TEST

SAM

PGND

SBM

Fig.2 Pin configuration.

FUNCTIONAL DESCRIPTION

Throughout this specification, it is assumed that the reader

is aware of ISO7816 norm terminology.

8.1

Microcontroller

The embedded microcontroller is an 80C51FB with

internal 16 kbytes ROM, 256 bytes RAM and 512 bytes

XRAM. It has the same instruction set as the 80C51.

The controller is clocked by the frequency present on pin

XTAL1.

The controller may be reset by an active HIGH signal on

pin RESET, but it is also reset by the Power-on reset signal

generated by the supply supervisor.

The external interrupt INT0_N is used by the ISO UART,

by the analog drivers and the ETU counters. It must be left

open in the application.

The second external interrupt INT1_N is available for the

application.

A general description as well as added features are

described in this chapter.

The added features to the 80C51 controller are similar to

the 8XC51FB controller, except on the wake-up from

Power-down mode, which is possible by a falling edge on

INT0_N (card reader problem) or on INT1_N or on RX due

to the addition of an extra delay counter and enable

configuration bits within register UCR2 (see detailed

description in Section 8.10.3.2). For any further

information please refer to the published specification of

the 8XC51FB in

“Data Handbook IC20; 80C51-Based 8-bit

Microcontrollers”.

The controller has four 8-bit I/O ports, three 16-bit

timer/event counters, a multi-source, four-priority-level,

nested interrupt structure, an enhanced UART and on-chip

oscillator and timing circuits. For systems that require

extra memory capability up to 64 kbytes, it can be

expanded using standard TTL-compatible memories and

logic.

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