4. History Data Details
4.1.3 IDE:
SRST
This history entry is recorded when a software reset is detected. If this history entry does
not appear even after the main CPU has issued a software reset, there may be a problem
with signal quality or in the signal connections shown below.
•
CS1-, DA0 to DA2, DD0 to DD7,
DIOW-
4.1.4
IDE: command [xxh]
This history entry is recorded when a command is received. The [xxh] part indicates the
command code for ATA commands and the operation code for ATAPI commands. If this
history entry does not appear even after the main CPU has issued a command or if the
command issued by the IDE host does not match the command/operation code in the
history, there may be a problem with signal quality or in the signal connections shown
below.
•
CS0-, CS1-, DA0 to DA2, DD0 to DD7,
DIOW-
4.1.5
IDE: PIO (D->H)
This history entry is recorded when PIO format data transfer starts. If “IDE: INTRQ” or
“IDE: idle” does not appear after the history entry, there may be a problem with signal
quality or in the signal connections shown below.
•
CS0-, CS1-, DA0 to DA2,
DIOW-
,
DIOR-
If data is incorrect, there may be a problem with signal quality or in the signal connections
shown below.
•
DD0 to DD15
4.1.6
IDE: PIO (H->D)
Refer to “4.1.5 IDE: PIO (D->H)”.
4.1.7
IDE: Multi Word DMA (D->H)
This history entry is recorded when Multi Word DMA format data transfer starts. If “IDE:
INTRQ” does not appear after the history entry, there may be a problem with signal quality
or in the signal connections shown below.
•
DIOW-
,
DIOR-
,
DMARQ
,
DMACK -
If data is incorrect, there may be a problem with signal quality or in the signal connections
shown below.
•
DD0 to DD15
S1R72U16 Development
EPSON 7
Support Manual (Rev.2.00)
