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 REGISTER1 / TIMER COUNTER1 { PHY4; (Y'=4, Peripheral register table 0) }

The Initial Value Register1 consisted of a 8-bit register sets the initial value to the counter, or gets the

counted value from the counter.

[ Writing to the Initial Value Register1 ]

When a data in RAM or Accumulator is transferred to the Initial Value Register1, the data is loaded

into the higher 4-bit(b7 to b4) or lower(b3 to b0) of the Initial Value Register1 in accordance with the

condition of LSB of Y-register.

YLSB=1

(MSB) 3 2 1 0 (LSB) (MSB) 7 6 5 4 3 2 1 0 (LSB)

M(X,Y)

or

AC

PHY4

YLSB=0

Initial value

Register1

[ Reading from the Timer Counter1 ]

When a current data in the Timer Counter1 is transferred into RAM or Accumulator, the data is

gotten from higher 4-bit(b7 to b4) or lower(b3 to b0) of the Timer Counter1 or Timer Counter2 in

accordance with the condition of LSB of Y-register.

YLSB=1

(MSB) 3 2 1 0 (LSB) (MSB) 7 6 5 4 3 2 1 0 (LSB)

M(X,Y)

or

AC

PHY4

YLSB=0

Timer Counter1

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