Отправлено MMM 24 ноября 2003 г. 10:06 В ответ на: подскажите сигнал ALE на IDE разьеме #28 нужен для работы с винтом и сиди или нет? отправлено колян безпарольныи 24 ноября 2003 г. 04:23

28 нога IDE
5.2.15 SPSYNC:CSEL (Spindle synchronization/cable select) (optional)
This signal shall have a 10K ohm pull-up resistor.
This is a dual purpose signal and neither, either or both functions may be implemented. If both functions are
implemented then they cannot be active concurrently: the choice as to which is active is vendor specific.
All devices connected to the same cable should have the same function active at the same time. If SPSYNC
and CSEL are mixed on the same cable, then device behavior is undefined.
Prior to the introduction of this standard, this signal was defined as DALE (Device Address Latch Enable),
and used for an address valid indication from the host system. If used, the host address and chip selects,
DAO through DA2, CS0-, and CS1- were valid at the negation of this signal and remained valid while DALE
was negated, therefore, the device did not need to latch these signals with DALE.
5.2.16 SPSYNC (Spindle synchronization) (optional)
The definition of this signal is vendor specific.