NJU3502L データシートの表示（PDF） - Japan Radio Corporation

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NJU3502L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

∗2 Wiring of terminals

The mask option selects a terminal type

from SDO/PF0, SDI(O)/PF1 or

SCK/CKOUT as shown in right.

PHY11

NJU3502

PHY2

Prescaler

∗3 Wiring of terminals

The mask option selects a terminal type

from EXTI/PE0 as shown in right.

SDO / PF0

SDI(O) / PF1 SCK / CKOUT

Interrupt

Circuit

PHY10

EXTI / PE0

• ROM ADDRESSING REGISTER(PHY13)

ROM ADDRESSING REGISTER(PHY13) indicates the address of ROM with Accumulator and X'-reg for

the data transference operation(TRM) from ROM to RAM. The effective bits on PHY13 are b0 and b1,

and the other two bits, b2 and b3, are not related.

The PHY13 condition is unknown on “RESET” operation.

[ROM ADDRESSING]

no used

A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

b3 b2 b1 b0 b3 b2 b1 b0 b3 b2 b1 b0

PHY13

X’

AC

-9-

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