Specifications

M80 Hardware Design
M80_HD_V1.0 - 16 -
Weight: 3.3g
Firmware upgrade
Firmware upgrade via UART Port or USB Port
Antenna interface
Connected via 50 Ohm antenna pad
Table 4: Coding schemes and maximum net data rates over air interface
Coding scheme
1 Timeslot
2 Timeslot
4 Timeslot
CS-1:
9.05kbps
18.1kbps
36.2kbps
CS-2:
13.4kbps
26.8kbps
53.6kbps
CS-3:
15.6kbps
31.2kbps
62.4kbps
CS-4:
21.4kbps
42.8kbps
85.6kbps
2.2. Functional diagram
The following figure shows a block diagram of the M80 module and illustrates the major
functional parts:
 Power management
 Baseband
 Serial Flash
 The GSM radio frequency part
 The Peripheral interface
—Charging interface
—PCM interface
—SD card interface
—SIM interface
—Camera interface
—Audio interface
—UART interface
—Power supply
—RF interface
—USB interface
—ADC
—Turn on/off interface
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