CME8000-BUS-GS-02 C-Max, CME8000-BUS-GS-02 Datasheet - Page 4

• Manufacturer Part Number: CME8000-BUS-GS-02
• Description: MODULE BUS IP65 CASING&ANT RS232
• Manufacturer: C-Max

Specifications of CME8000-BUS-GS-02

• Frequency: 40kHz ~ 120kHz
• Sensitivity: -115dBm
• Modulation Or Protocol: UTC - Universal Time Code
• Applications: Radio Controlled Time
• Current - Receiving: 2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: On-Board, Wire Antenna
• Voltage - Supply: 2.7 V ~ 5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -

Data Sheet
1. OVERVIEW
1.1 Interface with CPU
1.2 Time piece functions
1.3 Time signal reception functions
1.4 The duration of reception, the number of auto receptions, interval between auto reception trials (if
1.5 Radio Control Reception Mode
Single band :
DCF
JJY40
JJY60
MSF
WWVB
1.6 Default settings
Radio control reception mode
Time
Date
DST
Maximum duration of reception
Number of receptions
Time interval between receptions
Start time of 1
Reception activation mode
Reception comparison
CME8000-
SPEC No.
The CME-BUS uses three wires (READY , RXD, TXD) to communicate with other devices on the
serial communication bus. A minimum of two wires can be used if the host is an asynchronous
UART and does not make use of the READY interrupt available.
The READY pin is controlled by the bit status of the bits from the command RD_RTC_STATE.
Once there is a successful synchronization within the past 27 hours, this pin will be high, or else
this pin will be low.
The module will respond to commands from the host and return required time information. Time
information available includes hours, minutes, second, day of week, month, year(in last two
digits), special information (e.g. DST status)
When receiving time signals, it is possible to designate the module to try search presence of
either only one, two, or all signals and synchronise to the signal with better reception. There are
two reception activation possibilities: automatic reception activates radio control reception at set
regular intervals and times of the day. This can be set in one hour units. The other mode : forced
reception mode allows the host to start reception of radio control signal whenever activated.
more than one is defined), start time of 1
Radio control reception can be set by software command from an external host. Various reception
modes can be defined :
There will be also a set of default values for all above upon power on:
BUS
CME8000-BUS
st
reception
Revision
B6
26.07.05
State
Dual band:
JJY40 / JJY60
MSF / DCF
st
auto reception of the day can all be defined by the host.
C-MAX printed
26.07.2005
WWVB
00:00:00 (UTC time)
1
OFF
15 minutes
2
2 hours
3:00 am
Auto activated
All compare
st
January 2005
English
Version
C-MAX
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