UPD168113 datasheet(40/50 Pages) NEC

40 / 50 page

Data Sheet S16423EJ2V0DS

µ PD168113

11.9 Address B

This address is used to set the number of pulses.

The actual number of pulses is set by the product to the pulse number multiplication factor and the number of pulses

sets at address 9.

MSB

LSB

Bit

Data

Number of pulses

11.9.1 Number of pulses

Set the number of pulses to drive the motor. D0 to Db can be set a pulse in a range of 0 to 4095 pulses.

If the pulse number multiplication factor is set to a value other than 1 at address 9, the number of pulses set here is

multiplied by the set multiplication factor (m).

The number of pulses is internally multiplied by (m) and then counted. If it is set to output pulses to EXT1 (EXT2 in

the case of address F), the number of counts output is the set value itself (0 to 4095 x m) .

The number of pulses indicates the number of pulses per pulse period regardless of the driving mode (micro step, 1-

2 phase excitation, or 2-phase excitation). Therefore, the number of revolutions of the motor differs depending on the

driving mode, even if the number of pulses is the same.

11.9.2 Example of pulse cycle setting

Db......D0

Set Value

000000000000

000000000001

000000000010

2 x m

111111111101

4093 x m

111111111110

4094 x m

111111111111

4095 x m

Remark m indicates the set value of the pulse number multiplication factor of address 9. If the value of the twelve-bit,

D0 to Db, is 0, no pulse is output and the driving state is maintained.

UPD168113 Datasheet(PDF) 40 Page - NEC