tda8031hl-c107 NXP Semiconductors, tda8031hl-c107 Datasheet - Page 27

• Manufacturer Part Number: tda8031hl-c107
• Description: Usb Smart Card Reader Otp Or Rom
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.1.5.7
The Power Control Register (PCR) performs two tasks:
1. Starts or stops card sessions
2. Reads from or writes to auxiliary card contacts C4 and C8.
Table 26 Power control register (address 07H; read and write); note 1
Note
1. All bits are cleared after reset.
Table 27 Description of the PCR bits
2003 Jul 04
USB smart card reader (OTP or ROM)
BIT
7
7
6
5
4
3
2
1
0
Power control register
SYMBOL
START
RSTIN
1.8V
3/5V
C8
C4
6
not used
not used
Contact 8: When writing to the PCR bit C8 will output the value of bit C8. When reading
from the PCR, bit C8 will store the value on pin C8.
Contact 4: When writing to the PCR bit C4 will output the value written of bit C4. When
reading from the PCR bit C4 will store the value on pin C4.
1.8 V cards: if bit 1.8V is set, then V
Reset bit: When the card is activated, pin RST is the copy of the value written in RSTIN.
3 or 5 V cards: If bit 3/5V is set to logic 1, then V
then V
Start: If the microcontroller sets bit START to logic 1, then the selected card is activated;
see Section 8.3.3. If the microcontroller resets START to logic 0, then the card is
deactivated; see Section 8.3.4. START is automatically reset in the event of emergency
deactivation.
For deactivating the card, only bit START should be reset.
C8
5
CC
is 5 V.
C4
4
27
1.8V
3
CC
DESCRIPTION
= 1.8 V.
RSTIN
CC
2
is 3 V; If bit 3/5V is set to logic 0,
TDA8030; TDA8031
3/5V
1
Product specification
START
0