Но тем не менее на аналогичной маме этих 28 ом нет
Аналогичной - имеется в виду H61DEL? Или матплата на базе H61/X6x другого производителя?
amsokol писал(-а):
где можно почитать
На 1-ой странице документации RT8859M писал(-а):
Features
- 4/3/2/1 + 1 Phase PWM Controller
Где-то в середине документации RT8859M писал(-а):
Active Phase Determination : Before POR
The number of active phases is determined by the internal circuitry that monitors the ISENxN voltages during start-up. Normally, the CORE VR operates as a 4-phase PWM controller. Pulling ISEN4N to VCC programs a 3-phase operation, pulling ISEN3N and ISEN4N to VCC programs a 2-phase operation, and pulling ISEN2N, ISEN3N and ISEN4N to VCC programs a 1-phase operation.
....
Phase selection is only active during POR. When POR = high, the number of active phases is determined and latched. The unused ISENxP pins are recommended to be connected to VCC and unused PWM pins can be left floating.