MB90224 Ver la hoja de datos (PDF) - Fujitsu

Número de pieza

componentes Descripción

Lista de partido

MB90224

16-bit Proprietary Microcontroller

Fujitsu 

MB90220 Series

Pin no.

QFP*

12 to 16

Pin name

INT3 to INT7

78

P50

CLK

79

P51

RDY

80

P52

Circuit

type

Function

C External interrupt request input pins

When external interrupts are enabled, these inputs may be used

suddenly at any time; therefore, it is necessary to stop output by other

functions on these pins, except when using them for output

deliberately.

C General-purpose I/O port

This function is valid in single-chip mode and when the CLK output

specification is disabled.

CLK output pin

This function is valid in modes where the external bus is enabled and

the CLK output specification is enabled.

C General-purpose I/O port

This function is valid in single-chip mode or when the ready function

is disabled.

Ready input pin

This function is valid in modes where the external bus is enabled and

the ready function is enabled.

C General-purpose I/O port

This function is valid in single-chip mode or when the hold function is

disabled.

HAK

81

P53

HRQ

82

P54

WRH

83

P55

WRL

Hold acknowledge output pin

This function is valid in modes where the external bus is enabled and

the hold function is enabled.

C General-purpose I/O port

This function is valid in single-chip mode or external bus mode and

when the hold function is disabled.

Hold request input pin

This function is valid in modes where the external bus is enabled and

the hold function is enabled.

During this operation, the input may be used suddenly at any time;

therefore, it is necessary to stop output by other fuctions on this pin,

except when using it for output deliberately.

C General-purpose I/O port

This function is valid in single-chip mode, when the external bus is in

8-bit mode, or when WRH pin output is disabled.

Write strobe output pin for the high-order 8 bits of the data bus

This function is valid in modes where the external bus is enabled, the

external bus is in 16-bit mode, and WRH pin output is enabled.

C General-purpose I/O port

This function is valid in single-chip mode or when WRL pin output is

disabled.

Write strobe output pin for the low-order 8 bits of the data bus

This function is valid in modes where the external bus is enabled and

WRL pin output is enabled.

* : FPT-120P-M03, FPT-120C-C02

(Continued)

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