参数资料
型号: 73S1209F-44IMR/F/P
厂商: Maxim Integrated Products
文件页数: 119/123页
文件大小: 0K
描述: IC SMART CARD READER PROG 44-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: 73S12xx
核心处理器: 80515
芯体尺寸: 8-位
速度: 24MHz
连通性: I²C,智能卡,UART/USART
外围设备: LED,POR,WDT
输入/输出数: 9
程序存储器容量: 32KB(32K x 8)
程序存储器类型: 闪存
RAM 容量: 2K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-VFQFN 裸露焊盘
包装: 带卷 (TR)
DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
95
FD Control Register (FDReg): 0xFE13
0x11
Table 91: The FDReg Register
MSB
LSB
FVAL.3
FVAL.2
FVAL.1
FVAL.0
DVAL.3
DVAL.2
DVAL.1
DVAL.0
Bit
Symbol
Function
FDReg.7
FVAL.3
Refer to Table 93 above. This value is converted per the table to set the
divide ratio used to generate the baud rate (ETU). Default, also used for
ATR, is 0001 (Fi = 372). This value is used by the selected interface.
FDReg.6
FVAL.2
FDReg.5
FVAL.1
FDReg.4
FVAL.0
FDReg.3
DVAL.3
Refer to Table 93 above. This value is used to set the divide ratio used to
generate the smart card CLK. Default, also used for ATR, is 0001 (Di = 1).
FDReg.2
DVAL.2
FDReg.1
DVAL.1
FDReg.0
DVAL.0
This register uses the transmission factors F and D to set the ETU (baud) rate. The values in this register
are mapped to the ISO 7816 conversion factors as described below. The CLK signal for each interface is
created by dividing a high-frequency, intermediate signal (MSCLK) by 2. The ETU baud rate is created
by dividing MSCLK by 2 times the Fi/Di ratio specified by the codes below. For example, if FI = 0001 and
DI = 0001, the ratio of Fi/Di is 372/1. Thus the ETU divider is configured to divide by 2 * 372 = 744. The
maximum supported F/D ratio is 4096.
Table 92: Divider Ratios Provided by the ETU Counter
FI (code)
0000
0001
0010
0011
0100
0101
0110
0111
Fi (ratio)
372
558
744
1116
1488
1860
FCLK max
4
5
6
8
12
16
20
FI(code)
1000
1001
1010
1011
1100
1101
1110
1111
Fi(ratio)
512
512
768
1024
1536
2048
2048
FCLK max
5
5
7.5
10
15
20
20
DI(code)
0000
0001
0010
0011
0100
0101
0110
0111
Di(ratio)
1
1
2
4
8
16
32
DI(code)
1000
1001
1010
1011
1100
1101
1110
1111
Di(ratio)
12
20
16
16
16
16
16
16
Note: values marked with
⊕ are not included in the ISO definition and arbitrary values have been
assigned.
The values given below are used by the ETU divider to create the ETU clock. The entries that are not
shaded will result in precise CLK/ETU per ISO requirements. Shaded areas are not precise but are
within 1% of the target value.
相关PDF资料
PDF描述
73S1209F-44IM/F/P IC SMART CARD READER PROG 44-QFN
AKSPT-G-BLU-R CONN SHUNT 2.54MM GOLD 6.0MM BLU
AKSNT-Z-RED-R CONN SHUNT 2.54MM TIN 4.5MM RED
AKSNT-Z-BLUE-R CONN SHUNT 2.54MM TIN 4.5MM BLUE
EDJ4G0 SHUNT .100" BLACK W/HANDLE
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