Quantum FIREBALL PLUS AS 10.2 User Manual

ATA Bus Interface and ATA Commands
6-58 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
6.7.19
6.7.196.7.19
6.7.19 READ BUFFER
READ BUFFERREAD BUFFER
READ BUFFER
COMMAND CODE – E4h
DESCRIPTION – The READ BUFFER command enables the host to read the
current contents of the drive's sector buffer. When the host issues this command,
the drive sets BSY, sets up the sector buffer for a read operation, sets DRQ, clears
BSY, and generates an interrupt. The host then reads up to 512 bytes of data from
the buffer.
INPUTS
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 na
Sector Number na
Cylinder Low na
Cylinder High na
Device/ Head obs na obs DEV na
Command E4h
Register
RegisterRegister
Register 7
77
76
66
65
55
54
44
43
33
32
22
21
11
10
00
0
Error nananananaABRTnana
Sector Count na
Sector Number na
Cylinder Low na
Cylinder High na
Device/ Head obsnaobsDEVnananana
Status BSY DRDY DF na DRQ na na ERR

Quantum FIREBALL PLUS AS 10.2 Specifications

General

Brand	Quantum
Model	FIREBALL PLUS AS 10.2
Category	Storage
Language	English