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參數資料
型號: 73S1209F-68IMR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
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: 105/123頁
文件大小: 1385K
代理商: 73S1209F-68IMR/F
73S1209F Data Sheet
DS_1209F_004
Smart Card VCC Control/Status Register (VccCtl): 0xFE03
0x00
This register is used to control the power up and power down of the integrated smart card interface. It is
used to determine whether to apply 5V, 3V, or 1.8V to the smart card. Perform the voltage selection with
one write operation, setting both VCCSEL.1 and VCCSEL.0 bits simultaneously. The VDDFLT bit (if
enabled) will provide an emergency deactivation of the internal smart card slot. See the VDD Fault
Detect Function section for more detail.
Table 76: The VccCtl Register
MSB
LSB
VCCSEL.1 VCCSEL.0
VDDFLT
RDYST
VCCOK
SCPWRDN
Bit
Symbol
Function
VccCtl.7
VCCSEL.1
Setting non-zero value for bits 7,6 will begin activation sequence with target
Vcc as given below:
State
VCCSEL.1
VCCSEL.0
VCC
1
0
0V
2
0
1
1.8V
3
1
0
3.0V
4
1
5V
A card event or VCCOK going low will initiate a deactivation sequence.
When the deactivation sequence for RST, CLK and I/O is complete, VCC will
be turned off. When this type of deactivation occurs, the bits must be reset
before initiating another activation.
VccCtl.6
VCCSEL.0
VccCtl.5
VDDFLT
If this bit is set = 0, the CMDVCC3B and CMDVCC5B outputs are
immediately set = 1 to signal to the companion circuit to begin deactivation
when there is a VDD Fault event. If this bit is set = 1 and there is a VDD
Fault, the firmware should perform a deactivation sequence and then set
CMDVCC3B or CMDVCC5B = 1 to signal the companion circuit to set
VCC = 0.
VccCtl.4
RDYST
If this bit is set = 1, the activation sequence will start when bit VCCOK is
set = 1. If not set, the deactivation sequence shall start when the VCCTMR
times out.
VccCtl.3
VCCOK
(Read only). Indicates that VCC output voltage is stable.
VccCtl.2
VccCtl.1
VccCtl.0
SCPWRDN
This bit controls the power-down mode of the 73S1209F circuit.
1 = power down, 0 = normal operation.
82
Rev. 1.2
相關PDF資料
PDF描述
73S1209F-44IMR/F POWER SUPPLY MANAGEMENT CKT, QCC44
73S1209F-68IMR/F POWER SUPPLY MANAGEMENT CKT, QCC68
73S1209F-68IM/F POWER SUPPLY MANAGEMENT CKT, QCC68
73S1209F-44IMR/F POWER SUPPLY MANAGEMENT CKT, QCC44
73S1209F-44IM/F POWER SUPPLY MANAGEMENT CKT, QCC44
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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