Fujitsu MB91401 manual Sda, Scl, Pllvdd, Pllvss, Vdde, Vddi, Vss

Page 16

MB91401

 

 

 

 

 

 

Prelminary

 

 

 

 

 

2004.11.12

 

 

 

 

 

 

 

 

 

 

 

 

 

I2C IF (2 pin)

 

 

 

 

 

 

 

 

 

 

Pin name

Pin no.

Polarity

I/O

Circuit

 

 

Function/application

 

 

 

 

 

 

 

 

 

 

 

 

 

SDA

181

I/O

 

B

 

Serial data line input/output pin

 

 

 

 

I2C bus data I/O pin

 

 

 

 

 

 

 

 

 

 

 

SCL

59

I/O

 

B

 

Serial clock line input/output pin

 

 

 

 

I2C bus clock I/O pin

 

 

 

 

 

 

 

 

 

 

 

Power Supply/GND (39 pin)

 

 

 

 

 

 

 

 

 

Pin name

Pin no.

Polarity

I/O

 

Circuit

 

Function/application

 

 

 

 

 

 

 

 

 

 

 

 

 

PLLVDD

199

Power

 

V-E

 

APLL dedicated power supply pin

 

 

supply

 

 

This pin is for 1.8 V power supply pin.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PLLVSS

197

GND

 

V-S

APLL dedicated GND Pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

83

 

 

 

 

 

 

 

 

 

 

196

 

 

 

 

 

 

 

 

 

 

202

 

 

 

 

 

 

 

 

 

 

208

Power

 

 

 

 

 

 

 

VDDE

214

 

V-E

3.3 V power supply pin

 

 

supply

 

 

 

 

220

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

226

 

 

 

 

 

 

 

 

 

 

232

 

 

 

 

 

 

 

 

 

 

238

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

195

 

 

 

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

 

 

 

203

 

 

 

 

 

 

 

 

 

 

207

 

 

 

 

 

 

 

 

 

 

211

 

Power

 

 

 

 

 

 

 

VDDI

215

 

V-E

1.8 V power supply pin

 

 

219

supply

 

 

 

 

 

 

 

 

 

 

 

 

 

223

 

 

 

 

 

 

 

 

 

 

227

 

 

 

 

 

 

 

 

 

 

231

 

 

 

 

 

 

 

 

 

 

235

 

 

 

 

 

 

 

 

 

 

239

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

19

 

 

 

 

 

 

 

 

 

 

37

 

 

 

 

 

 

 

 

 

 

55

 

 

 

 

 

 

 

 

 

 

193

 

 

 

 

 

 

 

 

 

 

198

 

 

 

 

 

 

 

 

 

 

201

 

 

 

 

 

 

 

 

 

VSS

205

GND

 

V-S

 

GND Pin

 

 

209

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

213

 

 

 

 

 

 

 

 

 

 

217

 

 

 

 

 

 

 

 

 

 

221

 

 

 

 

 

 

 

 

 

 

225

 

 

 

 

 

 

 

 

 

 

229

 

 

 

 

 

 

 

 

 

 

233

 

 

 

 

 

 

 

 

 

 

237

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16

Image 16
Contents Description FeaturesPackage Packet filtering function General Purpose IO GpioMemory Interface USB Function ControllerCard Interface CompactFlash I2C InterfacePIN Assignment Index E F G H J K L M N P R T U V WPIN Number Table PIN Description GNDPin name Pin no Function/applicationBreaki ICS2ICS1 OUT ICS0SIN1 SIN0SOUT1 SOUT0MB91401 Rxclk RxerRxdv RxcrsExcsx EXAEXD15 EXD14UDP UDMUsbins UCLK48CFD15 CFD14 CFD13 CFD12 CFD11CFD10 CFD9 CFD8MB91401 SDA SCLPllvdd PllvssType Circuit Remarks Circuit TypeUSB I/O Circuit Remarks Handling Devices Separation of power supply patternPreventing Latch-up Treatment of the unused pins Treatment of Open pinsTreatment of output pins About power supply pinsConnected Specification of MB91401 and ICE Attached cable Part number RemarksSignal line name Wiring regulations Evaluation MCU terminal name Pin treatmentRST UV CCOsceb Pin name FunctionCircuit constants Description Bit data bus Holding request withdrawal demand function OFFTreatment of Unused Input Pins About Mode pins MDI2 to MDI0About watch dog timer Operation at start-upAndh AndbORH ORBDMA Trace mode Step execution of Reti instructionOperand break Interrupt handler to NMI request toolBlock Diagram Authentication macroMemory Space General Purpose Registers Mode Settings Mode PinsMode Register Modr RegisterOperation mode Bit1, bit0 WTH1, WTH0 Bus width setting bitsFunction Remarks MAP Address Register BlockDRCL0 W UTIMC0 R/W TIMER0 DRCL1 W UTIMC1 R/W TIMER1SIDR0 R/W UART0Ichrc R/W BSD0 XxxxxxxxBSD1 Xxxxxxxx BsdcAddress Register Block DMASA0 Xxxxxxxx DMADA0 XxxxxxxxDMASA1 Xxxxxxxx DMADA1 XxxxxxxxBsrr BCRR/W CCRR/W ADRR/W 1XXXXXXXDARR/W BC2RR/W Xxxxxxxx 010FFFFF HSmistatusr SIM if Xxxxxxxx Smiintenable SMICMDR/WSmicmdst 00XXXXXX SIM ifExifrxdr R Exiftxdr WExifrxrr ExiftxrwXXXXXXXX-XXXXXXXX FIFO1R FIFO2W XXXXXXXX-XXXXXXXXFIFO3W XXXXXXXX-XXXXXXXX CONT1R/W XXXXX0XX-XXX00000XXXXXXXX-X0000000 XXXXXXXX-XXX00000 Interrupt Vector Interrupt Address of TBR Interrupt source OffsetDefault Interrupt Address of TBR Interrupt source Offset NMI Non Maskable InterruptElectrical Characteristics Parameter Symbol Rating UnitMin ΣiolParameter Symbol Value Unit TypCfreset ParameterPin Conditions Value Unit Min Typ TCK/TRST/TMS TDI/TDOPin Conditions Value Unit Input Levels High driven Vcrs standard range Usbc VDDE/2Mclko Pin Conditions Reset ParameterUnit Remarks Min Mclko ↑ RDX Mclko ↑RDY Mclko ↑ SCK1, SCK0 SOUT1, SOUT0SIN1, SIN0 Sclk ↑Internal shift clock mode Rxdv Rxclk ↑ Txen Txclk ↑Rxer Rxclk ↑ Reception Mdio Mdclk ↑ OUT →Parameter Symbol Pin Value Unit Remarks Min External ifWrite access USB interface Parameter Symbol Pin UDP, UDMFull-speed Buffer 10 I2C interface PclkSCL Pclk SDA PclkCFCE2X, CFCE1X Card ifCFOEX, Cfiordx Parameter Symbol Value Unit Remarks Min MaxCFWEX, Cfiowrx CDWEX, CfiowrxOrdering Information Part number Package RemarksPackage Dimension Memo Japan North and South AmericaEurope Asia Pacific

MB91401 specifications

The Fujitsu MB91401 microcontroller is a versatile device designed for automotive applications, embedded systems, and industrial control. It belongs to the MB91400 series, known for its robustness and efficiency. This series integrates advanced features and technologies that cater to a wide variety of real-time applications.

One of the standout features of the MB91401 is its 32-bit RISC architecture, which operates at clock speeds up to 40 MHz. This high-performance core enables rapid processing and data handling, making it suitable for demanding applications. The microcontroller is equipped with a generous amount of Flash memory, allowing developers to store essential firmware and applications directly on the chip, enhancing reliability and reducing design complexity.

Another key characteristic is its extensive memory configuration, which includes SRAM for data storage and EEPROM for non-volatile data retention. This combination provides flexibility for developers, enabling them to tailor the memory allocation based on specific application requirements.

The MB91401 is designed with a focus on peripheral integration. It features multiple I/O ports, timer units, and A/D converters, making it an ideal choice for applications that require precise timing and analog signal processing. The analog-to-digital converters offer high resolution and fast conversion speeds, which are critical in automotive and industrial control systems where accuracy is paramount.

Safety is a critical consideration in automotive applications, and the MB91401 addresses this with built-in diagnostic features and error detection capabilities. These features help ensure that the application remains functional and safe under various operating conditions.

In terms of connectivity, the microcontroller supports various communication protocols, including CAN, UART, and SPI, facilitating seamless integration with other systems and devices. This is particularly important in automotive applications where communication between different electronic control units (ECUs) is essential for overall system functionality.

The Fujitsu MB91401 is also designed for low power consumption, making it suitable for battery-operated devices and energy-sensitive applications. Its various power-saving modes allow developers to optimize the system's performance while extending operational life.

In summary, the Fujitsu MB91401 is a powerful and flexible microcontroller that combines high-performance processing with extensive peripheral support and safety features. Its robust architecture and energy-efficient design make it an excellent choice for a wide range of automotive and industrial applications, promoting both reliability and innovation in embedded system development.