參數(shù)資料
型號: 8XC51FB
廠商: NXP Semiconductors N.V.
英文描述: Low power single card reader
中文描述: 低功耗單卡讀卡器
文件頁數(shù): 38/58頁
文件大?。?/td> 233K
代理商: 8XC51FB
2003 Oct 30
38
Philips Semiconductors
Product specification
Low power single card reader
TDA8029
Table 58
Baud rate selection using values F and D; card clock frequency f
CLK
= 3.58 MHz for PSC = 31 and
f
CLK
= 4.92 MHz for PSC = 32 (example: in this table 31;12 means prescaler set to 31 and PDR set to 12)
8.10.3.3
Guard Time Register (GTR)
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
D
F
0
1
2
3
4
5
6
9
10
11
12
13
1
31;12
9600
31;6
19200
31;3
38400
31;12
9600
31;6
19200
31;3
38400
31;18
6400
31;9
12800
31;24
4800
31;12
9600
31;6
19200
31;3
38400
31;36
3200
31;18
6400
31;9
12800
31;48
2400
31;24
4800
31;12
9600
31;6
19200
31;3
38400
31;60
1920
31;30
3840
31;15
7680
32;16
9600
32;8
19200
32;4
38400
32;2
76800
32;1
153600
32;24
6400
32;12
12800
32;6
25600
32;3
51300
32;32
4800
32;16
9600
32;8
19200
32;4
38400
32;2
76800
32;1
153600
32;48
3200
32;24
6400
32;12
12800
32;6
25600
32;3
51300
32;64
2400
32;32
4800
32;16
9600
32;8
19200
32;4
38400
32;2
76800
2
3
4
5
6
8
31;1
115200
31;1
115200
31;2
57600
31;3
38400
31;4
28800
31;5
23040
31;3
38400
32;2
76800
32;4
38400
9
BIT
7
6
5
4
3
2
1
0
Symbol
Reset value
GT7
0
GT6
0
GT5
0
GT4
0
GT3
0
GT2
0
GT1
0
GT0
0
BIT
SYMBOL
DESCRIPTION
7 to 0
GT[7:0]
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.
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