co661al-s Connect One Ltd., co661al-s Datasheet - Page 22

• Manufacturer Part Number: co661al-s
• Description: The Co661al-s Ichip? Internet Controller? Is Part Of A Family Of Intelligent Peripheral Devices That Provides Internet Connectivity Solutions To A Myriad Of Embedded Devices.
• Manufacturer: Connect One Ltd.

CLKO/HBT/Z6
-SER/PAR
Z0
Z1/PCS
Z2/POBE
PWSG/Z3
Z4
Z5
Z7
GND
VCC
iChip CO661AL-S Datasheet
Signal
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
O
P
P
I
Pin No.
44
55
14
21
40
41
61
62
50
67
1
AT+i Configurable Pin:
CLKO (default): Clock Output. This pin provides a
clock-out to the system at the same frequency as X1.
During reset the clock out is disabled.
HBT: Heart Beat. Provides a 50% duty cycle, 40 mSec
frequency square wave, when iChip F/W is properly
running. (Available from iChip Firmware ver. 7.04).
In the future it may be changed to a GPIO.
This pin is configurable with the AT+iPN44 command
(see AT+i Programmers Manual).
Serial/Parallel mode select. This pin is sampled on the
rising edge of the –RES signal. If it is LOW, iChip
functions in Serial mode. Otherwise, it functions in
Parallel mode.
Reserved as a GPIO for future use. This pin should be
Not Connected.
In Serial mode, Z1 is available as a GPIO for future use
and should be left Not Connected.
In Parallel mode, PCS is used as a chip-select for the
parallel interface PAL.
In Serial mode, Z2 is available as a GPIO for future use
and should be left Not Connected.
In Parallel mode, POBE is used as the Parallel Output
Buffer Empty signal. When HIGH, iChip may send a
parallel data byte to the host.
AT+i Configurable Pin:
PWSG (default): Power-Save Gate. This pin is used to
disable the iChip’s oscillator (X1 Pin 42) via an external
gate in order to achieve full sleep mode with minimal
power consumption (see
Z3: General Purpose I/O.
Reserved as a GPIO for future use. This pin should be
Not Connected.
Reserved as a GPIO for future use. This pin should be
Not Connected.
Reserved as a GPIO for future use. This pin should be
Not Connected.
Ground: iChip Ground signal.
Power Supply: This pin supplies power (+3.3V) to
iChip.
Description
Fig.
7-6).
Pin Descriptions
5-5