TDA8029 Philips Semiconductors, TDA8029 Datasheet - Page 38

• Manufacturer Part Number: TDA8029
• Description: Low power single card reader
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 58 Baud rate selection using values F and D; card clock frequency f
8.10.3.3
The guard time register is used for storing the number of guard ETUs given by the card during ATR. In transmission
mode, the UART will wait this number of ETUs before transmitting the character stored in register UTR.
Table 59 Guard time register, address 5h, read and write
Table 60 Description of register bits
2003 Oct 30
1
2
3
4
5
6
8
9
Symbol
Reset value
D
Low power single card reader
7 to 0
BIT
BIT
115200
19200
38400
31;12
9600
31;6
31;3
31;1
0
f
CLK
Guard Time Register (GTR)
= 4.92 MHz for PSC = 32 (example: in this table 31;12 means prescaler set to 31 and PDR set to 12)
GT[7:0]
115200
19200
38400
SYMBOL
31;12
9600
31;6
31;3
31;1
1
GT7
7
0
12800
31;18
6400
31;9
2
Guard time value. When GT[7:0] = FFh:
In protocol T = 1
– TDA8029HL/C1 operates at 11 ETU
– TDA8029HL/C2 operates at 10.8 ETU.
In protocol T = 0.
– TDA8029HL/C1 operates at 12 ETU
– TDA8029HL/C2 operates at 11.8 ETU.
GT6
6
0
19200
38400
57600
31;24
31;12
4800
9600
31;6
31;3
31;2
3
12800
38400
31;36
31;18
3200
6400
31;9
31;3
GT5
4
5
0
19200
38400
28800
31;48
31;24
31;12
2400
4800
9600
31;6
31;3
31;4
5
38
GT4
4
0
F
23040
38400
31;60
31;30
31;15
1920
3840
7680
31;5
31;3
6
DESCRIPTION
GT3
153600
19200
38400
76800
3
0
32;16
9600
32;8
32;4
32;2
32;1
CLK
9
= 3.58 MHz for PSC = 31 and
12800
25600
51300
76800
32;24
32;12
6400
32;6
32;3
32;2
10
GT2
2
0
153600
19200
38400
76800
32;32
32;16
4800
9600
32;8
32;4
32;2
32;1
11
GT1
Product specification
1
0
12800
25600
51300
38400
32;48
32;24
32;12
TDA8029
3200
6400
32;6
32;3
32;4
12
GT0
19200
38400
76800
32;32
32;16
32;64
2400
4800
9600
32;8
32;4
32;2
0
0
13