參數資料
型號: 73S1209F-68IMR/F/P
廠商: Maxim Integrated Products
文件頁數: 112/123頁
文件大?。?/td> 0K
描述: IC SMART CARD READER PROG 68-QFN
產品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 2,500
系列: 73S12xx
核心處理器: 80515
芯體尺寸: 8-位
速度: 24MHz
連通性: I²C,智能卡,UART/USART
外圍設備: LED,POR,WDT
輸入/輸出數: 9
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
RAM 容量: 2K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 68-VFQFN 裸露焊盤
包裝: 帶卷 (TR)
DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
89
External Smart Card Control Register (SCECtl): 0xFE0B
0x00
This register is used to directly set and sample signals of External Smart Card interface. There are three
modes of asynchronous operation, an “automatic sequence” mode, and bypass mode. Clock stop per
the ISO 7816-3 interface is also supported but firmware must handle the protocol for SIO and SCLK for
I
2C clock stop and start. Control for Reset (to make RST signal), activation control, voltage select, etc.
should be handled via the I
2C interface when using external 73S73S8010x devices. USR(n) pins shall
be used for C4, C8 functions if necessary.
Table 84: The SCECtl Register
MSB
LSB
SIO
SIOD
SCLKLVL SCLKOFF
Bit
Symbol
Function
SCECtl.7
SCECtl.6
SCECtl.5
SIO
External Smart Card I/O. Bit when read indicates state of pin SIO for
SIOD = 1 (Caution, this signal is not synchronized to the MPU clock), when
written, sets state of pin SIO for SIOD = 0. Ignored if not in bypass or sync
modes. In sync mode, this bit will contain the value of IO pin on the latest
rising edge of SCLK.
SCECtl.4
SIOD
1 = input, 0 = output. External Smart Card I/O Direction control. Ignored if
not in bypass or sync modes.
SCECtl.3
SCECtl.2
SCECtl.1
SCLKLVL
Sets the state of SCLK when disabled by SCLKOFF bit. If in bypass mode,
this bit directly controls the state of SCLK.
SCECtl.0
SCLKOFF
0 = SCLK enabled, 1 = SCLK disabled. When disabled, SCLK level is
determined by SCLKLVL. This bit has no effect if in bypass mode.
相關PDF資料
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