tda8005ah NXP Semiconductors, tda8005ah Datasheet - Page 12

• Manufacturer Part Number: tda8005ah
• Description: Low-power 3 V/5 V Smart Card Coupler
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 2 Explanation of Fig.5; note 1
Note
1. All registers are active HIGH.
1998 Mar 20
REG0 = 0, REG1 = 0 and R/W = 0; CLOCK configuration register
(configuration after reset is cards clock STOP LOW, f
CC0
CC1
CC2
CC3
CC4
CC5
CC6
CC7
REG0 = 1, REG1 = 0 and R/W = 0; UART configuration register (after reset all bits are cleared)
UC0
UC1
UC2
UC3
UC4
UC5 to UC7
REG0 = 0, REG1 = 1 and R/W = 0; UART transmit register
UT0 to UT7
REG0 = 1, REG1 = 1 and R/W = 0; PORTS EXTENSION (after reset all bits are cleared)
PE0 to PE5
PE6 and PE7 not used
REG0 = 0, REG1 = 0 and R/W = 1; UART receive register
UR0 to UR7
REG0 = 1, REG1 = 0 and R/W = 1; UART status register (after reset all bits are cleared)
US0
US1
US2
US3
US4
US5 to US7
BIT NAME
Low-power (3 V/5 V) smart card coupler
cards clock =
cards clock =
cards clock =
cards clock =
cards clock = STOP HIGH
f
f
f
ISO UART RESET
START SESSION
LCT (Last Character to Transmit)
TRANSMIT/RECEIVE
3 V/5 V
not used
LSB to MSB of the character to be transmitted to the card
PE0 to PE5 is the inverse of the value to be written on K0 to K5
LSB to MSB of the character received from the card
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 the UART transmit register, or abort the session
not used
clk
clk
clk
=
=
=
1
1
1
2
4
2
f
f
f
XTAL
XTAL
INT
1
1
1
1
2
4
8
2
f
f
f
f
XTAL
XTAL
XTAL
INT
clk
12
DESCRIPTION
=
1
8
f
INT
)
Preliminary specification
TDA8005A