- 您现在的位置：买卖IC网 > PDF目录380730 > ST7SCR1E4M1 (意法半导体) 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER PDF资料下载
参数资料
| 型号： | ST7SCR1E4M1 |
| 厂商： | 意法半导体 |
| 英文描述： | 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| 中文描述： | 8位低功耗，全速USB微控制器与16K的闪存，768内存，智能卡的I /楼，计时器 |
| 文件页数： | 64/102页 |
| 文件大小： | 1413K |
| 代理商： | ST7SCR1E4M1 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页当前第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页
ST7SCR
64/102
SMARTCARD INTERFACE
(Cont’d)
SMARTCARD CONTACT CONTROL REGISTER
(CRDCCR)
Read/Write
Reset Value: 00xx xx00 (xxh)
Note:
To modify the content of this register, the LD
instruction must be used (do not use the BSET
and BRES instructions).
Bit 7 =
CLKSEL
Card clock selection.
This bit is set and cleared by software.
0: The signal on the CRDCLK pin is a copy of the
CRDCLK bit.
1: The signal on the CRDCLK pin is a 4MHz fre-
quency clock.
Note: T
o start the clock at a known level, the CRD-
CLK bit should be changed before the CLKSEL
bit.
Bit 6 = Reserved, must be kept cleared.
Bit 5 =
CRDC8
CRDC8 pin control.
Reading this bit returns the value present on the
CRDC8 pin. Writing this bit outputs the bit value on
the pin.
Bit 4 =
CRDC4
CRDC4 pin control
Reading this bit returns the value present on the
CRDC4 pin. Writing this bit outputs the bit value on
the pin.
Bit 3 =
CRDIO
CRDIO pin control
.
This bit is active only if the UART bit in the CRDCR
Register is reset. Reading this bit returns the value
present on the CRDIO pin.
If the UART bit
is reset:
– Writing “0” forces a low level on the CRDIO pin
– Writing “1” forces the CRDIO pin to open drain
Hi-Z.
Bit 2 =
CRDCLK
CRDCLK pin control
This bit is active only if the CLKSEL bit of the CRD-
CCR register is reset. Reading this bit returns the
value present in the register (not the CRDCLK pin
value).
When the CLKSEL bit is reset:
0: Level 0 to be applied on CRDCLK pin.
1: Level 1 to be applied on CRDCLK pin.
Note:
To ensure that the clock stops at a given
value, write the desired value in the CRDCLK bit
prior to changing the CLKSEL bit from 1 to 0.
Bit 1 =
CRDRST
CRDRST pin control.
Reading this bit returns the value present on the
CRDRST pin. Writing this bit outputs the bit value
on the pin.
Bit 0 =
CRDVCC
CRDVCC Pin Control.
This bit is set and cleared by software and forced
to 0 by hardware when no card is present
(CRDIRF bit=0).
0: No voltage to be applied on the CRDVCC pin.
1: The selected voltage must be applied on the
CRDVCC pin.
Figure 37. Smartcard I/O Pin Structure
7
0
CLK
SEL
-
CRD
C8
CRD
C4
CRD
IO
CRD
CLK
CRD
RST
CRD
VCC
I/O PIN
DATA BUS
CRDCCR
REGISTER
相关PDF资料 |
PDF描述 |
|---|---|
| ST72SCR1R4M1 | 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| ST72FSCR1R4M1 | 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| ST72PSCR1R4M1 | 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| ST7SCR1R4T1 | Enclosures; External Depth:18.50"; External Height:47.312"; External Width:22"; Panel Width:19.00"; Enclosure Color:Royal Blue; Enclosure Material:Steel; Panel Space:42.00" RoHS Compliant: Yes |
| ST7PSCR1R4T1 | 8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ST7SCR1R4 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| ST7SCR1R4T1 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER |
| ST7SCRDIE | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:ST7SCR - 8-BIT LOW-POWER. FULL-SPEED USB MCU WITH 16K FLASH. 768 RAM. SMARTCARD I/F. TIMER (DATA BRIEFING) |
| ST7-STICK | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:Low Cost, In-Circuit Programmer for ST7 |
| ST7-STICK/US | 功能描述:程序设计器 - 基于处理器 ST7 In-Circuit Comm RoHS:否 制造商:Olimex Ltd. 产品:Programmers 工具用于评估:XMEGA, MegaAVR, tinyAVR 核心:AVR 接口类型:USB 工作电源电压:1.8 V to 5.5 V |
发布紧急采购，3分钟左右您将得到回复。