TDA8029C2 PHILIPS [NXP Semiconductors], TDA8029C2 Datasheet - Page 32
TDA8029C2
Manufacturer Part Number
TDA8029C2
Description
Low power single card reader
Manufacturer
PHILIPS [NXP Semiconductors]
Datasheet
1.TDA8029C2.pdf
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Philips Semiconductors
8.10.2.2
Table 46 UART receive register, address Dh, read
Table 47 Description of register bits
2003 Oct 30
Symbol
Reset value
Low power single card reader
7 to 0
BIT
BIT
UART Receive Register (URR)
UR[7:0]
SYMBOL
UR7
7
0
UART receive bits. When the microcontroller wants to read data from the card, it reads
it from this register in direct convention:
With a synchronous card, only UR0 is relevant and is a copy of the state of the selected
card I/O
When needed, this register may be tied to a FIFO whose length ‘n’ is programmable
between 1 and 8; if n > 1, then no interrupt is given until the FIFO is full and the
controller may empty the FIFO when required
With a parity error:
– In protocol T = 0, the received byte is not stored in the FIFO and the error counter is
– In protocol T = 1, the character is loaded in the FIFO and the bit PE is set to the
When the FIFO is full, then bit RBF in the status register USR is set. This bit is reset
when at least one character has been read from URR
When the FIFO is empty, then bit FE is set in the status register USR as long as no
character has been received.
UR6
6
0
incremented. The error counter is programmable between 1 and 8. When the
programmed number is reached, then bit PE is set in the status register USR and
INT0_N falls LOW. The error counter must be reprogrammed to the desired value
after its count has been reached
programmed value in the parity error counter.
UR5
5
0
32
UR4
4
0
DESCRIPTION
UR3
3
0
UR2
0
2
UR1
Product specification
1
0
TDA8029
UR0
0
0
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