TDA8005 Datasheet, PDF (12/32 Pages) NXP Semiconductors – Low-power smart card coupler

Philips Semiconductors
Low-power smart card coupler
Product specification
TDA8005
Table 2 Description of Fig.5
BIT NAME
DESCRIPTION
REG0 = 0, REG1 = 0, R/W = 0; CLOCK CONFIGURATION
(Configuration after reset is cards clock STOP LOW, f_clk = ¹â„₈f_INT)
CC0
CC1
CC2
CC3
CC4
cards clock = ¹â„₂f_xtal
cards clock = ¹â„₄f_xtal
cards clock = ¹â„₈f_xtal
cards clock = ¹â„₂f_INT
cards clock = STOP HIGH
CC5
CC6
CC7
f_clk = ¹â„₂f_xtal
f_clk = ¹â„₄f_xtal
f_clk = ¹â„₂f_INT
REG0 = 1, REG1 = 0, R/W = 0; UART CONFIGURATION (after reset all bits are cleared)
UC0
UC1
UC2
UC3
UC4 to UC7
ISO UART RESET
START SESSION
LCT (Last Character to Transmit)
TRANSMIT/RECEIVE
not used
REG0 = 0, REG1 = 1, R/W = 0; UART TRANSMIT
UT0 to UT7
LSB to MSB of the character to be transmitted to the card
REG0 = 1, REG1 = 1, R/W = 0; PORTS EXTENSION (after reset all bits are cleared)
PE0 to PE5
PE6, PE7
PE0 to PE5 is the inverse of the value to be written on K0 to K5
not used
REG0 = 0, REG1 = 0, R/W = 1; UART RECEIVE
UR0 to UR7
LSB to MSB of the character received from the card
REG0 = 1, REG1 = 0, R/W = 1; UART STATUS REGISTER (after reset all bits are cleared)
US0
US1
US2
US3
US4
US5 to US7
UART TRANSMIT buffer empty
UART RECEIVE buffer full
first start bit detected
parity error detected during reception of a character (the UART has asked the card to repeat the
character)
parity error detected during transmission of a character. The controller must write the previous
character in UART TRANSMIT, or abort the session.
not used
1996 Sep 25
12