NJU3505L データシートの表示（PDF） - Japan Radio Corporation

部品番号

コンポーネント説明

一致するリスト

NJU3505L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3505

• PORTJ(PJ0, PJ1)

PORTJ is a 2-bit input PORT. It operates also as VREF and ADCK terminals of the internal A/D

converter by the mask option. When the PORTJ is set as the input PORT, the two external signals are

gotten directly through the input terminals by reading data from PHY26.

[ READING PORTJ INPUT DATA (PHY26) ]

(MSB) 3

PHY26

“0”

2

1

0 (LSB)

“0” PJ1 PJ0

PORTJ Input Data

• PORTK(PK0, PK1)

PORTK is a 2-bit input PORT. It operates also as EXTI input terminal for the external interrupt input

and CNTI terminal for the event counter external clock input by the mask option. When the PORTK is set

as the input PORT, the two external signals are gotten directly from the input terminals by reading data from

PHY27.

[ READING PORTK INPUT DATA (PHY27) ]

(MSB) 3

PHY27 “0”

2

1

0 (LSB)

“0” PK1 PK0

PORTK Input Data

• PORTL(PL0, PL1)

PORTL is a 2-bit input-output PORT. It operates also as SDO and SDI(O) terminals for the 8-bit serial

interface by the mask option. When the PORTL is selected as the input-output PORT, PL0 is fixed as the

output and PL1 can be selected as the input or the output by the mask option. When the PORTL is

selected as the output, the two signals are output through the output terminals to the external circuit by

writing data to the PORTL register(PHY28). When PL1 is selected as the input, the external signal is

gotten directly through the input terminal by reading data from PHY28.

[ READING PORTL INPUT DATA (PHY28) ]

(MSB) 3

PHY28 “0”

2

1

“0” PL1

0 (LSB)

“∗”

PL0 monitor

PORTL Input Data

When PL0 is output, its output condition can be monitored.

[ WRITING PORTL OUTPUT DATA (PHY28) ]

(MSB) 3

PHY28 −

2

1

0 (LSB)

−

PL1 PL0

PORTL Output Data

- 20 -

Share Link: