Users Manual

GSM/GPRS Module Series
M66 Hardware Design
M66_Hardware_Design Confidential / Released 15 / 82
temperature levels, the module will meet 3GPP compliant again.
Table 2: Coding Schemes and Maximum Net Data Rates over Air Interface
2.3. Functional Diagram
The following figure shows a block diagram of M66 and illustrates the
major functional parts.
 Radio frequency part
 Power management
 The peripheral interface
—Power supply
—Turn-on/off interface
—UART interface
—Audio interface
—PCM interface
—SIM interface
—SD interface
—ADC interface
—RF interface
—BT 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