Quantum FIREBALL PLUS AS 10.2 - Write DMA

ATA Bus Interface and ATA Commands
6-52 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
6.7.14
6.7.146.7.14
6.7.14 Write DMA
Write DMAWrite DMA
Write DMA
COMMAND CODE – CAh,CBh
DESCRIPTION – The Write DMA command allows the host to write data using the
DMA transfer protocol. The host should not use the CBh value.
INPUTS
ERROR OUTPUTS
Register
RegisterRegister
Register 7
77
76
66
65
55
54
44
43
33
32
22
21
11
10
00
0
Features na
Sector Count Sector count
Sector Number Sector count or LBA
Cylinder Low Cylinder low or LBA
Cylinder High Cylinder high or LBA
Device/ Head obs LBA obs DEV na Head Number or LBA
Command CAh
Register
RegisterRegister
Register 7
77
76
66
65
55
54
44
43
33
32
22
21
11
10
00
0
Error ICRCnanaIDNFnaABRTnana
Sector Count na
Sector Number na
Cylinder Low na
Cylinder High
Device/ Head obs na obs DEV HEAD number or LBA
Status BSY DRDY DF na DRQ na na ERR