co711ag Connect One Ltd., co711ag Datasheet - Page 16

• Manufacturer Part Number: co711ag
• Description: Ichip? Co710ag And Ichipsec? Co711ag Internet Controllers? Are High-performance, Firmware-based Intelligent Peripheral Devices That Provide Internet Connectivity Solutions For A Wide Range Of Embedded Devices.
• Manufacturer: Connect One Ltd.

Connect One
5.2.1 80x86 BUS
This BUS type includes the following signals:
iChip CO710AG/iChipSec CO711AG Data Sheet
• -HCS:
• -HRD: Host Read Data. When –HRD is LOW, a data byte is read from the
• -HWR: Host Write Data. When –HWR is LOW, a data byte is written to the
• HD0 – HD7: Bi-directional Host data BUS.
• -HRES: Parallel reset. A LOW generates a reset signal to the parallel
• -HERR: Parallel error. A LOW indicates a parallel interface error. This pin
• HOBE
• HIBF : Host Input Buffer Full. When HIGH, indicates that the input buffer is
Note 1:
HOBE and HIBF complement PIBF and POBE respectively
1
1
: Host Output Buffer Empty. When HIGH, indicates that the output
Host Chip-Select signal. When -HCS is LOW, PAL is selected.
PAL.
PAL.
interface. This pin may be connected to an 80x86 output port.
may be connected to an input port on the 80x86.
buffer is empty and the host may send a data byte to iChip. When the
Host sends a data byte, this signal goes LOW until iChip reads the
data.
This signal may be connected to an interrupt or I/O pin on the 80x86.
full and the host may read a data byte from iChip. When the host
reads the data, this signal goes LOW. This pin may be connected to
an interrupt or I/O pin on the 80x86.
80x86
Host
HD0-HD7
-ERROR
Figure 5-1 Interface to an 80x86 Type BUS
-HRES
HOBE
-HWR
-HRD
HIBF
-HCS
EPM7032AEC44
PAL
Hardware Interface
.
POBE
PIBF
PCS
-RD
-WR
D0-D7
-PRES
-PERR
CO710AG
iChip
5-2