Fujitsu MB91401 Breaki, ICS2, ICS1 OUT, ICS0, Iclk, ICD3, ICD2, ICD1, ICD0, Tck, Trst, Tms, Tdi

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MB91401

Prelminary

2004.11.12

 

 

ICE (9 pin)

Pin name

Pin no.

 

Polarity

 

I/O

 

Circuit

 

 

Function/application

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emulator break request pin

BREAKI

76

 

 

IN

 

D

 

This pin inputs the emulator break request when an ICE is

 

 

 

 

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

ICS2

74

 

 

 

 

 

 

Emulator chip status pins

ICS1

75

 

 

OUT

 

F

 

These pins output the emulator status when an ICE is

ICS0

4

 

 

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Emulator clock pin

ICLK

3

 

 

I/O

 

B

 

This pin serves as the emulator clock pin when an ICE is

 

 

 

 

 

 

 

 

 

connected.

 

 

 

 

 

 

 

 

 

 

 

ICD3

140

 

 

 

 

 

 

 

Emulator data pins

ICD2

194

 

 

 

 

 

 

 

 

I/O

 

B

 

These pins serve as the emulator data bus when an ICE is

ICD1

139

 

 

 

 

 

 

 

 

 

 

 

connected.

ICD0

138

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JTAG (5 pin)

 

 

 

 

 

 

 

 

 

 

Pin name

Pin no.

 

Polarity

 

I/O

 

Circuit

 

Function/application

 

 

 

 

 

 

 

 

 

 

 

TCK

146

 

 

IN

 

E

 

JTAG test clock pin

 

 

 

 

Note : Please input “1” when unused.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TRST

78

 

 

IN

 

E

 

JTAG test reset pin

 

 

 

 

Note : Please input “0” when unused.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TMS

7

 

 

IN

 

E

 

TAP controller mode select pin

 

 

 

 

Note : Please input “1” when unused.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

JTAG test data input pin

TDI

5

 

 

IN

 

E

 

JTAG test serial data input pin.

 

 

 

 

 

 

 

 

 

 

Note : Please input “1” when unused.

 

 

 

 

 

 

 

 

 

 

 

TDO

141

 

 

OUT

 

F

 

JTAG test data output pin

 

 

 

 

JTAG test serial data output pin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST (5 pin)

 

 

 

 

 

 

 

 

 

 

Pin name

Pin no.

 

Polarity

 

I/O

 

Circuit

 

Function/application

 

 

 

 

 

 

 

 

 

 

 

VPD

143

 

 

IN

 

 

Mode pin

 

 

 

 

Input “0” to this pin.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TEST3

84

 

 

 

 

 

 

 

 

Test pin

TEST2

13

 

 

 

 

 

 

 

 

 

 

IN

 

D

 

Input “0000” to this pin.

TEST1

82

 

 

 

 

 

 

 

 

 

 

 

 

Note : Don’t set other than above description.

TEST0

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

Image 8
Contents Package FeaturesDescription 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 PllvssUSB I/O Circuit TypeType Circuit Remarks Circuit Remarks Preventing Latch-up Separation of power supply patternHandling Devices 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 CCCircuit constants Description Pin name FunctionOsceb 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 RegisterFunction Remarks Bit1, bit0 WTH1, WTH0 Bus width setting bitsOperation mode 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 Mclko VDDE/2Usbc Unit Remarks Min Reset ParameterPin Conditions Mclko ↑ RDX Mclko ↑RDY Mclko ↑ SCK1, SCK0 SOUT1, SOUT0SIN1, SIN0 Sclk ↑Internal shift clock mode Rxer Rxclk ↑ Txen Txclk ↑Rxdv 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 PclkCFOEX, Cfiordx Card ifCFCE2X, CFCE1X 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.