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

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NJU3505L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3505

*5 Wiring of terminals

The mask option selects a terminal type

from VREF/PJ0, or ADCK/PJ1 as shown in

right.

ADC

PHY26

*6 Wiring of terminals

The mask option selects a terminal type

from EXTI/PK0, or CNTI/PK1 as shown

in right.

VREF / PJ0

ADCK / PJ1

Interrupt

Circuit

PHY27

Timer2

EXTI / PK0

CNTI / PK1

• ROM ADDRESSING REGISTER(PHY13, PHY14)

ROM ADDRESSING REGISTERS (PHY13. PHY14) indicates the address of ROM with Accumulator

and X'-reg for the data transference operation (TRM) from ROM to RAM.

The PHY13 and PHY14 condition are unknown on “RESET” operation. The lower a bit(b0) in PHY14 is

used as the ROM ADDRESSING and higher 3 bits(b1,b2,b3) are not used,

[ ROM ADDRESSING ]

no used

A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0

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

PHY14

PHY13

X’

AC

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