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73S1209F-68IM/F 参数 Datasheet PDF下载

73S1209F-68IM/F图片预览
型号: 73S1209F-68IM/F
PDF下载: 下载PDF文件 查看货源
内容描述: 自包含的密码键盘,智能卡读卡器IC的UART至ISO7816 / EMV桥接IC [Self-Contained PINpad, Smart Card Reader IC UART to ISO7816 / EMV Bridge IC]
分类和应用: 电源电路电源管理电路
文件页数/大小: 123 页 / 1421 K
品牌: TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
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DS_1209F_004  
73S1209F Data Sheet  
Block Wait Time Registers (BWTB0): 0xFE1B Å 0x00, (BWTB1): 0xFE1A Å 0x00, (BWTB2):  
0xFE19 Å 0x00, (BWTB3): 0xFE18 Å 0x00  
Table 98: The BWTB0 Register  
MSB  
BWT.7  
LSB  
BWT.0  
BWT.6  
BWT.5  
BWT.4  
BWT.3  
BWT.1  
BWT.2  
BWT.9  
Table 99: The BWTB1 Register  
MSB  
LSB  
BWT.8  
BWT.15 BWT.14 BWT.13 BWT.12 BWT.11 BWT.10  
Table 100: The BWTB2 Register  
MSB  
LSB  
BWT.23 BWT.22 BWT.21 BWT.20 BWT.19 BWT.18 BWT.17 BWT.16  
Table 101: The BWTB3 Register  
MSB  
LSB  
BWT.27 BWT.26 BWT.25 BWT.24  
These registers (BWTB0, BWTB1, BWTB2, BWTB3) are used to set the Block Waiting Time(27:0)  
(BWT). All of these parameters define the maximum time the 73S1209F will have to wait for a character  
from the smart card. These registers serve a dual purpose. When T=1, these registers are used to set  
up the block wait time. The block wait time defines the time in ETUs between the beginning of the last  
character sent to smart card and the start bit of the first character received from smart card. It can be  
used to detect an unresponsive card and should be loaded by firmware prior to writing the last TX byte.  
When T = 0, these registers are used to set up the work wait time. The work wait time is defined as the  
time between the leading edge of two consecutive characters being sent to or from the card. If a timeout  
occurs, an interrupt is generated to the firmware. The firmware can then take appropriate action. A Wait  
Time Extension (WTX) is supported with the 28-bit BWT.  
Character Wait Time Registers (CWTB0): 0xFE1D Å 0x00, (CWTB1): 0xFE1C Å 0x00  
Table 102: The CWTB0 Register  
MSB  
CWT.7  
LSB  
CWT.0  
CWT.6  
CWT.5  
CWT.4  
CWT.3  
CWT.1  
CWT.2  
Table 103: The CWTB1 Register  
MSB  
CWT.15 CWT.14 CWT.13 CWT.12 CWT.11 CWT.10  
LSB  
CWT.8  
CWT.9  
These registers (CWTB0, CWTB1) are used to hold the Character Wait Time(15:0) (CWT) or Initial Waiting  
Time(15:0) (IWT) depending on the situation. Both the IWT and the CWT measure the time in ETUs  
between the leading edge of the start of the current character received from the smart card and the leading  
edge of the start of the next character received from the smart card. The only difference is the mode in  
which the card is operating. When T=1 these registers are used to configure the CWT and these registers  
configure the IWT when the ATR is being received. These registers should be loaded prior to receiving  
characters from the smart card. Firmware must manage which time is stored in the register. If a timeout  
occurs, an interrupt is generated to the firmware. The firmware can then take appropriate action.  
Rev. 1.2  
99