Idézet: Rive - Dátum: 2009. márc. 2., hétfő - 21:19
Az IDE alapból 16 bites. 8 bites buszra illeszteni...

Tévedés!
Idézet az ATA-1 szabványból:
Idézet
6.3.5 DD0-DD15 (Drive data bus)
This is an 8- or 16-bit bidirectional data bus between the host and the drive.
The lower 8 bits are used for 8-bit transfers e.g., registers, ECC bytes and,
if the drive supports the Features Register capability to enable 8-bit-only
data transfers (see 9.22).
Idézet
6.3.11 IOCS16- (Drive 16-bit I/O)
Except for DMA transfers, IOCS16- indicates to the host system that the 16-bit
data port has been addressed and that the drive is prepared to send or receive
a 16-bit data word. This shall be an open collector output.
- When transferring in PIO mode, if IOCS16- is not asserted, transfers
shall be 8-bit using DD0-7.
- When transferring in PIO mode, if IOCS16- is asserted, transfers shall
be 16-bit using DD0-15.
- When transferring in DMA mode, the host shall use a 16-bit DMA channel
and IOCS16- shall not be asserted.
Idézet
9.22 Set features
This command is used by the host to establish the following parameters which
affect the execution of certain drive features as shown in table 12.
Table 12 - Set feature register definitions
| 01h | Enable 8-bit data transfers (see 6.3.5) |
...
| 81h | Disable 8-bit data transfers (see 6.3.5) |
Csak az ATA-3 szabványban törölték el a 8 bites átvitel lehetőségét:
Idézet
Revision 4 - 6 September 1995
...
Removed 8-bit transfer mode.
Van is egy Miniscribe 8450XT vinyóm vezérlővel ami 8 bites! Sajnos pincében rohasztották pár évig, nem hiszem, hogy működik

az biztos, hogy az elkók szét vannak rohadva rajta...