MB90246A 查看數據表（PDF） - Fujitsu

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MB90246A

(MB90220 Series) 16-bit Proprietary Microcontroller

Fujitsu 

MB90246A Series

Pin no.

LQFP*

76

Pin name

P55

WR

WRL

77 P56

RD

78,28,27 P57,P73,P72

36 to 39, P60 to P63,

41 to 44 P64 to P67

AN0 to AN3,

AN4 to AN7

25 P70

ASR0

26 P71

ASR1

29 to 31 P74 to P76

TIN0 to TIN 2

TOT0 to TOT2

51 to 53 P82 to P84

DAO0 to DAO2

* : FPT-100P-M05

8

Circuit

type

E

E

E

G

E

E

E

H

Function

This is a general-purpose I/O port.

This function becomes valid when WRL/WR pin output is disabled.

This is a write strobe output pin for the lower 8-bit of data bus.

This function becomes valid when WRL/WR pin output is enabled.

WRL is used for holding the lower 8-bit for write strobe in 16-bit

access operations, while WR is used for holding 8-bit data for write

strobe in 8-bit access operations.

This pin cannot be used as a general-purpose port.

This is a read strobe output pin for the data bus.

This function is valid in the mode where the external bus is valid.

This is a general-purpose I/O port.

This is an I/O port of an N-ch open-drain type.

When the data register is read by a read instruction other than the

modify write instruction with the corresponding bit in ADER set at

“0”, the pin level is acquired. The value set in the data register is

output to the pin as is.

This is an analog input pin of the 8/10-bit A/D converter.

When using this input pin, set the corresponding bit in ADER at “1”.

Also, set the corresponding bit in the data register at “1”.

This is a general-purpose I/O port.

This is a data input pin for input capture 0.

Because this input is used as required when the input capture 0 is

performing input operations, and it is necessary to stop outputs

from other functions unless such outputs are made intentionally.

This is a general-purpose I/O port.

This is a data input pin of input capture 1.

Because this input is used as required when input capture 1 is

performing input operations, and it is necessary to stop outputs by

other functions unless such outputs are made intentionally.

This is a general-purpose I/O port.

This function becomes valid when outputs from 16-bit re-load timer

0 – 2 are disabled.

This is an input pin of 16-bit timer.

Because this input is used as required whin 16-bit timer 0 - 2 is

performing input operations,and it is necessary to stop outputs by

other functions unless such outputs are made intentionally.

These are output pins for 16-bit re-load timer 0 and 1.

This function becomes valid when output from 16-bit re-load timer

0 – 2 are enabled.

This is a general-purpose I/O port.

This function becomes valid when data output from 8-bit D/A

converter 0 – 2 are disabled.

This is an output pin of 8-bit D/A converter.

This function becomes valid when data output from 8-bit D/A

converter 0 – 2 are enabled.

(Continued)

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