常见usim卡速率

中国电信
起始速率
12.900 (12903) bps

ATR: 3B 9F 94 80 1F C7 80 31 E0 73 FE 21 1B 57 37 86 60 A4 01 80 13 05 FF 10 94 7B
+ TS = 3B --> Direct Convention
+ T0 = 9F, Y(1): 1001, K: 15 (historical bytes)
  TA(1) = 94 --> Fi=512, Di=8, 64 cycles/ETU
    62500 bits/s at 4 MHz, fMax for Fi = 5 MHz => 78125 bits/s
  TD(1) = 80 --> Y(i+1) = 1000, Protocol T = 0 
-----
  TD(2) = 1F --> Y(i+1) = 0001, Protocol T = 15 - Global interface bytes following 
-----
  TA(3) = C7 --> Clock stop: no preference - Class accepted by the card: (3G) A 5V B 3V C 1.8V 
+ Historical bytes: 80 31 E0 73 FE 21 1B 57 37 86 60 A4 01 80 13 05 FF 10 94 7B
 ERROR! ATR is too long: 5 extra byte(s). Truncating.
  Category indicator byte: 80 (compact TLV data object)
    Tag: 3, len: 1 (card service data byte)
      Card service data byte: E0
        - Application selection: by full DF name
        - Application selection: by partial DF name
        - BER-TLV data objects available in EF.DIR
        - EF.DIR and EF.ATR access services: by GET RECORD(s) command
        - Card with MF
    Tag: 7, len: 3 (card capabilities)
      Selection methods: FE
        - DF selection by full DF name
        - DF selection by partial DF name
        - DF selection by path
        - DF selection by file identifier
        - Implicit DF selection
        - Short EF identifier supported
        - Record number supported
      Data coding byte: 21
        - Behaviour of write functions: proprietary
        - Value 'FF' for the first byte of BER-TLV tag fields: invalid
        - Data unit in quartets: 2
      Command chaining, length fields and logical channels: 1B
        - Logical channel number assignment: by the interface device and card
        - Maximum number of logical channels: 4
    Tag: 5, len: 7 (card issuer's data)
      Card issuer data: 37 86 60 A4 01 80 13

协商后为
75 kbps
=======
150 kbps (中国移动)

150k*32=4.8M
说明 EC20 R2给的时钟频率是 4.8MHz的

所以,默认是 4800000/372=12903

https://ludovicrousseau.blogspot.com/2016/04/atr-statistics-ta1-global-encodes-fi.html

本文章由作者:佐须之男 整理编辑,原文地址: 常见usim卡速率
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