co711ag Connect One Ltd., co711ag Datasheet - Page 17

• 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
5.2.2 MC68xxx BUS
This BUS type includes the following signals:
iChip CO710AG/iChipSec CO711AG Data Sheet
• -HCS:
• -HR/-W: Host read/write data from/to iChip. When HR/-W is LOW, it
• 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
indicates a write cycle; otherwise it is a read cycle.
interface. This pin may be connected to a MC68xxx 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
MC68xxx.
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 MC68xxx.
Host Chip-Select signal. When -HCS is LOW, PAL is selected.
MC68302
Host
HD0-HD7
Figure 5-2 Interface to an MC68xxx Type BUS
-ERROR
HR/-W
-HRES
HOBE
HIBF
-HCS
EPM7032AEC44
PAL
Hardware Interface
POBE
PIBF
PCS
-RD
-WR
D0-D7
-PRES
-PERR
CO710AG/
CO711AG
iChip
5-3