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參數資料
型號: 73S1209F-68IMR/F
廠商: TERIDIAN SEMICONDUCTOR CORP
元件分類: 電源管理
英文描述: POWER SUPPLY MANAGEMENT CKT, QCC68
封裝: LEAD FREE, QFN-68
文件頁數: 107/123頁
文件大小: 1385K
代理商: 73S1209F-68IMR/F
73S1209F Data Sheet
DS_1209F_004
Card Status/Control Register (CRDCtl): 0xFE05
0x00
This register is used to configure the card detect pin (DETCARD) and monitor card detect status. This
register be written to properly configure Debounce, Detect_Polarity (= 0 or = 1), and the pull-up/down
enable before setting CDETEN. The card detect logic is functional even without smart card logic clock.
When the PWRDN bit is set = 1, no debounce is provided but card presence is operable.
Table 78: The CRDCtl Register
MSB
LSB
DEBOUN CDETEN
DETPOL
PUENB
PDEN
CARDIN
Bit
Symbol
Function
CRDCtl.7
DEBOUN
Debounce – When set = 1, this will enable hardware de-bounce of the
card detect pin. The de-bounce function shall wait for 64ms of stable card
detect assertion before setting the CARDIN bit. This counter/timer uses
the keypad clock as a source of 1kHz signal. De-assertion of the CARDIN
bit is immediate upon de-assertion of the card detect pin(s).
CRDCtl.6
CDETEN
Card Detect Enable – When set = 1, activates card detection input.
Default upon power-on reset is 0.
CRDCtl.5
CRDCtl.4
CRDCtl.3
DETPOL
Detect Polarity – When set = 1, the DETCARD pin shall interpret a logic 1
as card present.
CRDCtl.2
PUENB
Enable pull-up current on DETCARD pin (active low).
CRDCtl.1
PDEN
Enable pull-down current on DETCARD pin.
CRDCtl.0
CARDIN
Card Inserted – (Read only). 1 = card inserted, 0 = card not inserted. A
change in the value of this bit is a “card event.” A read of this bit indicates
whether smart card is inserted or not inserted in conjunction with the
DETPOL setting.
84
Rev. 1.2
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相關代理商/技術參數
參數描述
73S1209F-68M/F/P1 功能描述:8位微控制器 -MCU Contained 80515-SoC Serial Hst Interface RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數據總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數據 RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
73S1209F-EB 功能描述:開發板和工具包 - 8051 73S1209F Eval Brd (Doc. Cd, Cable) RoHS:否 制造商:Silicon Labs 產品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓:
73S1209F-IM44 DK 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd
73S1209F-IM44 EB 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Eval Brd Eval Bd Doc Cd Cable
73S1209F-IM68 DK 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 73S1209F Dev Kit Eval Bd Ice Cable Cd
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