TDA8029C2 datasheet(39/58 Pages) PHILIPS

39 / 58 page

2003 Oct 30

Philips Semiconductors

Product speciﬁcation

Low power single card reader

TDA8029

8.10.3.4

UART Conﬁguration Register 1 (UCR1)

This register is used for setting the parameters of the ISO UART.

Table 61 UART conﬁguration register 1, address 6h, read and write

Table 62 Description of register bits

8.10.3.5

Clock Conﬁguration Register (CCR)

This register defines the clock to the card and the clock to the ISO UART. Note that if bit CKU in the prescaler register

of the selected card (register UCR2) is set, then the ISO UART is clocked at twice the frequency to the card, which allows

to reach baud rates not foreseen in ISO 7816 norm.

Table 63 Clock conﬁguration register, address 1h, read and write

BIT

543210

Symbol

−

FIP

PROT

T/R

LCT

CONV

Reset value

−

0000000

BIT

SYMBOL

DESCRIPTION

−

Not used.

FIP

Force Inverse Parity. If FIP = 1, then the UART will NAK a correct received character,

and will transmit characters with wrong parity bit.

5FC

Test bit. FC must be left to logic 0.

4PROT

Protocol. If PROT = 1, then protocol type is asynchronous T = 1; if PROT = 0, the

protocol is T = 0.

T/R

Transmit/Receive. This bit is set by software for transmission mode. A change from

logic 0 to logic 1 will set bit TBE in register USR. T/R is automatically reset by hardware

if LCT has been used before transmitting the last character.

LCT

Last Character to Transmit. This bit is set by software before writing the last character

to be transmitted in register UTR. It allows automatic change to reception mode. It is

reset by hardware at the end of a successful transmission. When LCT is being reset, the

bit T/R is also reset and the ISO 7816 UART is ready for receiving a character.

1SS

Start Session. This bit is set by software before ATR for automatic convention detection

and early answer detection. It is automatically reset by hardware at 10.5 ETU after

reception of the initial character.

CONV

Convention. This bit is set if the convention is direct. Bit CONV is either automatically

written by hardware according to the convention detected during ATR, or by software if

bit AUTOCONV in register UCR2 is set.

BIT

543210

Symbol

−−

SHL

CST

AC2

AC1

AC0

Reset value

−−

000000

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