NJU3505L 查看數據表（PDF） - Japan Radio Corporation

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NJU3505L

4-BIT SINGLE CHIP MICRO CONTROLLER

Japan Radio Corporation  

NJU3505

• INITIAL VALUE REGISTER2 / TIMER COUNTER2 {PHY6, PHY11;(Y'=6,Y’=11 Peripheral register table 0)}

The Initial Value Register2 consisted of a 12-bit register sets the initial value to the counter, or gets the

counted value from the counter.

[ Writing to the Initial Value Register2 ]

When a data in RAM or Accumulator is transferred to the Initial Value Register2, the data is loaded

into the middle 4-bit(b7 to b4) or lower4-bit(b3 - b0) is accordance with the condition of LSB of Y-

register. But the higher 4-bit(b11 to b8) can load the data without any conditions.

YLSB=1

(MSB) 3 2 1 0 (LSB) (MSB) 11 10 9 8 7 6 5 4 3 2 1 0 (LSB)

M(X,Y)

or

AC

Higher:PHY11

YLSB=0

Middle:PHY6

Lower:PHY6

Initial Value

Register 2

[ Reading from the Timer Counter 2 ]

When a current data in the Timer Counter2 is transferred into RAM or Accumulator, the data is

gotten from the middle 4-bit(b7 to b4) or lower 4-bit(b3 to b0) of the Timer Counter2 in accordance

with the condition of LSB of Y-register. But the higher 4-bit(b11 to b8) can output the data without

any conditions.

YLSB=1

(MSB) 3 2 1 0 (LSB) (MSB) 11 10 9 8 7 6 5 4 3 2 1 0 (LSB)

M(X,Y)

or

AC

Higher:PHY11

YLSB=0

Middle:PHY6

Lower:PHY6 Timer counter2

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