ATA Bus Interface and ATA Commands
Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
6-9
Note:
Note:
Note:
Note:
1. See signal descriptions for information on source of these signals.
2. Used during Ultra DMA protocol only.
3. Pins numbered 2, 19, 22, 24, 26, 30, and 40 are ground.
4. Pin number 20 is the Key Pin.
5. CBLID– during device based cable detection on devices supporting Ultra
DMA modes higher than 2.
6.4.2
6.4.2
6.4.2
6.4.2
Host Interface Timing
Host Interface Timing
Host Interface Timing
Host Interface Timing
6.4.2.1
6.4.2.1
6.4.2.1
6.4.2.1
Programmed I/O (PIO) Transfer Mode
Programmed I/O (PIO) Transfer Mode
Programmed I/O (PIO) Transfer Mode
Programmed I/O (PIO) Transfer Mode
The PIO host interface timing shown in Table 6-5 is in reference to signals at 0.8
volts and 2.0 volts. All times are in nanoseconds, unless otherwise noted. Figure 6-
1 provides a timing diagram.
33
DEVICE ADDRESS BIT 1
—>
DA1
36
DEVICE ADDRESS BIT 2
—>
DA2
29
DMA ACKNOWLEDGE
—>
DMACK–
21
DMA REQUEST
<—
DMARQ
31
INTERRUPT REQUEST
<—
INTRQ
25
I/O READ
DMA ready on data in bursts (see note
2)
Data strobe on data out bursts (see
note 2)
—>
—>
—>
DIOR–
HDMARDY–
HSTROBE
27
I/O READY
DMA ready on data out bursts (see
note 2)
Data strobe on data in bursts (see note
2)
<—
<—
<—
IORDY
DDMARDY–
DSTROBE
23
I/O WRITE
STOP (see note 2)
—>
—>
DIOW–
STOP
34
PASSED DIAGNOSTCS/CABLE
DETECTION
(See Notes 1 & 5)
PDIAG–/CBLID–
1
RESET
—>
RESET
32
I/O CS16
<—
IOCS16
J1 PIN
J1 PIN
J1 PIN
J1 PIN
NUMBER
NUMBER
NUMBER
NUMBER
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
HOST
HOST
HOST
HOST
DIR
DIR
DIR
DIR
DEV
DEV
DEV
DEV
ACRONYM
ACRONYM
ACRONYM
ACRONYM
Summary of Contents for FIREBALL PLUS AS 10.2
Page 12: ...About This Manual 1 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 16: ...General Description 2 8 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 61: ...Basic Principles of Operation Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT 5 16 ...
Page 62: ...Basic Principles of Operation 5 17 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...
Page 162: ...Index I 4 Quantum Fireball Plus AS 10 2 20 5 30 0 40 0 60 0 GB AT ...