Fujitsu MB91401 manual

Page 10

MB91401

 

 

 

 

Prelminary

 

 

 

 

2004.11.12

 

 

 

 

 

 

 

 

 

 

 

(Continued)

 

 

 

 

 

 

 

 

Pin name

Pin no.

Polarity

I/O

Circuit

Function/application

 

 

 

 

 

 

 

 

 

 

 

D31

 

169

 

 

 

 

 

 

D30

 

110

 

 

 

 

 

 

D29

 

168

 

 

 

 

 

 

D28

 

109

 

 

 

 

 

 

D27

 

42

 

 

 

 

 

 

D26

 

218

 

 

 

 

 

 

D25

 

167

 

 

 

 

 

 

D24

 

108

 

 

 

 

 

 

D23

 

41

 

 

 

 

 

 

D22

 

166

 

 

 

 

 

 

D21

 

107

 

 

 

 

 

 

D20

 

40

 

 

 

 

 

 

D19

 

106

 

 

 

 

 

 

D18

 

39

 

 

 

 

 

 

D17

 

38

 

 

 

 

 

 

D16

 

105

I/O

B

Data input/output pins

 

 

D15

 

36

32 bits data input/output signal pin.

 

 

 

 

 

 

 

 

D14

 

165

 

 

 

 

 

 

D13

 

104

 

 

 

 

 

 

D12

 

35

 

 

 

 

 

 

D11

 

164

 

 

 

 

 

 

D10

 

103

 

 

 

 

 

 

D9

 

34

 

 

 

 

 

 

D8

 

216

 

 

 

 

 

 

D7

 

163

 

 

 

 

 

 

D6

 

102

 

 

 

 

 

 

D5

 

33

 

 

 

 

 

 

D4

 

162

 

 

 

 

 

 

D3

 

101

 

 

 

 

 

 

D2

 

32

 

 

 

 

 

 

D1

 

100

 

 

 

 

 

 

D0

 

31

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CSX6

 

159

Nega-

 

 

Chip select output pins

 

 

CSX1

 

98

OUT

B

3-bit chip select signal pin.

 

 

 

tive

 

 

CSX0

 

29

 

 

Output the “L” level when accessing to external memory.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Nega-

 

 

Read strobe output pin

 

 

RDX

 

27

OUT

B

Read strobing signal pin.

 

 

 

tive

 

 

 

 

 

 

 

Output the “L” level when read accessing.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WRX3

 

96

 

 

 

Write strobing output pins

 

 

WRX2

 

28

Nega-

 

 

 

 

 

OUT

B

Write strobing signal pin.

 

 

WRX1

 

97

tive

 

 

 

 

 

Output the “L” level when write accessing.

 

 

WRX0

 

158

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MCLKO

 

25

OUT

F

Memory clock output pin

 

 

 

Clock for peripheral resources pin.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Posi-

 

 

External RDY input pin

 

 

RDY

 

157

IN

D

When the external bus is not completed, the bus cycle can

 

 

 

tive

 

 

 

 

 

 

 

be extended by inputting “0”.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

Image 10
Contents Description FeaturesPackage Memory Interface Packet filtering functionGeneral Purpose IO Gpio 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/applicationICS1 OUT BreakiICS2 ICS0SOUT1 SIN1SIN0 SOUT0MB91401 Rxdv RxclkRxer RxcrsEXD15 ExcsxEXA EXD14Usbins UDPUDM UCLK48CFD10 CFD9 CFD15 CFD14 CFD13 CFD12CFD11 CFD8MB91401 Pllvdd SDASCL PllvssType Circuit Remarks Circuit TypeUSB I/O Circuit Remarks Handling Devices Separation of power supply patternPreventing Latch-up Treatment of output pins Treatment of the unused pinsTreatment of Open pins About power supply pinsConnected Specification of MB91401 and ICE Attached cable Part number RemarksRST Signal line name Wiring regulationsEvaluation MCU terminal name Pin treatment UV CCOsceb Pin name FunctionCircuit constants Description Bit data bus Holding request withdrawal demand function OFFAbout watch dog timer Treatment of Unused Input PinsAbout Mode pins MDI2 to MDI0 Operation at start-upORH AndhAndb ORBDMA Operand break Trace modeStep execution of Reti instruction Interrupt handler to NMI request toolBlock Diagram Authentication macroMemory Space General Purpose Registers Mode Register Modr Mode SettingsMode Pins RegisterOperation mode Bit1, bit0 WTH1, WTH0 Bus width setting bitsFunction Remarks MAP Address Register BlockSIDR0 R/W DRCL0 W UTIMC0 R/W TIMER0DRCL1 W UTIMC1 R/W TIMER1 UART0BSD1 Xxxxxxxx Ichrc R/WBSD0 Xxxxxxxx BsdcAddress Register Block DMASA1 Xxxxxxxx DMASA0 XxxxxxxxDMADA0 Xxxxxxxx DMADA1 XxxxxxxxDARR/W BC2RR/W Xxxxxxxx Bsrr BCRR/W CCRR/W ADRR/W1XXXXXXX 010FFFFF HSmicmdst Smistatusr SIM if Xxxxxxxx SmiintenableSMICMDR/W 00XXXXXX SIM ifExifrxrr Exifrxdr RExiftxdr W ExiftxrwFIFO3W XXXXXXXX-XXXXXXXX XXXXXXXX-XXXXXXXXFIFO1R FIFO2W 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 InterruptMin Electrical CharacteristicsParameter Symbol Rating Unit ΣiolParameter Symbol Value Unit TypPin Conditions Value Unit Min Typ CfresetParameter 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 ↑ SIN1, SIN0 SCK1, SCK0SOUT1, SOUT0 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 SCL Pclk 10 I2C interfacePclk SDA PclkCFCE2X, CFCE1X Card ifCFOEX, Cfiordx CFWEX, Cfiowrx Parameter SymbolValue Unit Remarks Min Max CDWEX, CfiowrxOrdering Information Part number Package RemarksPackage Dimension Memo Europe JapanNorth and South America 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.