MB90P678PF Просмотр технического описания (PDF) - Fujitsu

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производитель

MB90P678PF

16-bit Proprietary Microcontroller

Fujitsu 

MB90670/675 Series

LQFP

-80*1

Pin no.

QFP LQFP

-80*2 -100*3

5, 6 7, 8 3, 4

7, 8 9, 10 5, 6

10

12

7

11

13

8

12

14

10

13

15

11

*1: FPT-80P-M05

*2: FPT-80P-M06

*3: FPT-100P-M05

*4: FPT-100P-M06

QFP Pin name Circuit type

-100*4

Function

P24, P25

General-purpose I/O port

This function is always valid.

5, 6

E

Event input pins of 16-bit reload timer 0 and 1

TIN0, TIN1

(CMOS/H)

Because this input is used as required when the

16-bit reload timer is performing input operations,

and it is necessary to stop outputs by other func-

tions unless such outputs are made intentionally.

P26, P27

7, 8

TOT0,

TOT1

General-purpose I/O port

This function is valid when outputs from 16-bit re-

E

load timer 0 and 1 are disabled.

(CMOS/H) Output pins for 16-bit reload timer 0 and 1

This function is valid when output from 16-bit re-

load timer 0 and 1 are enabled.

P30

9

ALE

B

(CMOS)

General-purpose I/O port

This function is valid in the single-chip mode.

Address latch enable output pin

This function is valid in the mode where the exter-

nal bus is valid.

P31

10

RD

B

(CMOS)

General-purpose I/O port

This function is valid in the single-chip mode.

Read strobe output pin for the data bus

This function is valid in the mode where the exter-

nal bus is valid.

General-purpose I/O port

P32

This function is valid in the single-chip mode or

WRL/WR pin output is disabled.

WRL

12

WR

B

(CMOS)

Write strobe output pin for the data bus

This function is valid when WRL/WR pin output is

enabled in the mode where external bus is valid.

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.

P33

13

WRH

B

(CMOS)

General-purpose I/O port

This function is valid in the single-chip mode, in the

external bus 8-bit mode, or WRH pin output is dis-

abled.

Write strobe output pin for the upper 8-bit of the

data bus

This function is valid when the external bus 16-bit

mode is selected in the mode where the external

bus is valid, and WRH output pin is enabled.

(Continued)

14

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