co120sq Connect One Ltd., co120sq Datasheet - Page 22

• Manufacturer Part Number: co120sq
• Description: The Ichip? Co120sq Internet Controller? Is A High-performance, Firmware-based Intelligent Peripheral Device That Provides Internet Connectivity Solutions For A Wide Range Of Embedded Devices.
• Manufacturer: Connect One Ltd.

6.2.2.3
Signal
D[7-0]
A[5-0]
RXDI/A6
-WIFI_
WAIT
-RD
-WR
-CFWR
-LANINT
iChip CO120SQ Data Sheet
Local Bus Signals (WiFi Connection)
Type
I/OD
IO
O
O
O
O
I
I
Pin No.
61, 60, 56
40, 37, 36,
35, 34, 33,
53, 3, 62,
32, 31
46
52
48
1
5
6
Description
Data BUS: These pins supply data to/from the iChip.
These pins should be connected to the CF data BUS.
Address BUS: These pins supply addresses to the
iChip. These pins should be connected to the CF
address BUS.
Monitor Mode: RXDI (I)
This pin supplies asynchronous serial receive data for
ICP (In-Circuit Programming) mode.
Application Mode: A6 (O)
WiFi Address line 6. This pin should be connected to
the CF address BUS.
This signal is Open drain; it must be connected with a
10K pull-up resistor when used as A6 output.
WiFi adapter WAIT signal.
When –WIFI_WAIT is low, iChip waits for WiFi
adapter.
READ: This pin indicates that iChip is performing a
read cycle.
This pin should be connected to the CF BUS -RD
signal.
WRITE: This pin indicates that iChip is performing a
write cycle.
This pin should be connected to the CF BUS -WR
signal.
-CFWR: This pin indicates that iChip is performing a
write I/O cycle.
This pin should be connected to the CF BUS -IOWR
signal.
Note that the -IORD signal on the CF BUS must be
connected to VDD.
WLAN Interrupt. When LOW, this signal indicates that
the WiFi controller has pending information.
Pin Descriptions
6-10