CH2165(2003) 데이터 시트보기 (PDF) - Cermetek Microelectronics
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CH2165 Datasheet PDF : 18 Pages
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Cermetek Microelectronics, Inc.
SEND EMAIL
CONTROL
PIN
INPUT
Input 1
SENSE
Input 2
AND
OUTPUT
EMAIL
PINS
ACCEPTED
INDICATOR Interface
PIN
Circuitry
RXD
RTS SERIAL
DCD INTERFACE
DSR
V-24
RI EIA-232-E or
CTS UART
TXD
DTR
Network
Protocol
POP 3 SMTP
TCP
IP
PPP
µP
Flash ROM
32Kx8
(CH2124/60)
CH21XX
MODEM
V.90 (CH2160/65)
V.22bis (CH2124)
MODEM INTERFACE
High Speed Internet Modem Family
Flash ROM
2Mx8
(CH2165)
RAM
8Mx8
(CH2165)
DAA
TIP
PSTN
Ring
RST SPK +5V
GND
Figure 2. Functional Block Diagram of Cermetek CH21XX iModem Products. Note the additional RAM and ROM
provided in the CH2165 iModem product.
Fully Autonomous On Demand Event Driven
Control: CH2124/60. This is the simplest method of
operational control. Application of a 50ms TTL Low
going pulse or level to the Send Email Control pin (Pin
# 6) will cause the CH2124/60 iModem to send an
email using its internal internet configuration profile.
This profile is pre-programmed at the factory and can
be modified by the user as necessary. No host
processor intervention is required. The DTE serial
interface is not required for fully autonomous on
demand or event driven control. The CH2124/60
iModem will abort email related activities and return to
the idle state if a low going TTL pulse is presented to
the SEND Email Control Pin (Pin # 6) at any time during
or after initiation of email send.
Semi-Autonomous Control: CH2124/60. This method
requires a minimal amount of host processor
intervention and requires that the DTE serial port be
operational. Semi-autonomous control is a special
case of full Host Supervised Control and relies on the
preprogrammed default internet configuration profile
contained within the iModem. Initiation of an email
activity occurs with the issuance by the host processor
to the iModem the appropriate @T® command to
send/retrieve/delete email. PSTN dial-up, logon,
authentication and email transmission, retrieval, and/or
deletion are performed automatically by the iModem in
the same fashion as for the Fully Autonomous On-
Demand control method described above.
Host Supervised Control: CH2124/60. This method is
the most flexible, but requires issuance by the host
processor of the necessary @T® commands in the
required order from the host processor. When
choosing an implementation scheme utilizing a host
processor, the host controls the iModem by using
Cermetek @T® commands. These commands are
similar to the standard Hayes AT command set.
Although the DTE serial port is required to be
operational for this method of control, an additional
feature of this method is the ability of the host to over-
ride the preprogrammed parameters (including the
email message content) by simply entering the
applicable information using the appropriate @T®
Command.
Delete Email: CH2124/60. The user may selectively
delete any email message (by specifying the message
number) or delete all messages cached on the POP3
server.
2003 Cermetek Microelectronics, Inc.
Page 4
Document No. 607-0017 Revision H2 (11/03)
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