User Manual

Jennic
© Jennic 2009 JN-DS-JN5148-001 1v2 3
Preliminary
8 Wireless Transceiver 26
8.1 Radio 26
8.1.1 Radio External Components 27
8.1.2 . Antenna Diversity 27
8.2 Modem 29
8.3 Baseband Processor 29
8.3.1 Transmit 29
8.3.2 Reception 30
8.3.3 Auto Acknowledge 30
8.3.4 Beacon Generation 30
8.3.5 Security 30
8.4 Security Coprocessor 30
8.5 Location Awareness 31
8.6 Higher Data Rates 31
9 Digital Input/Output 32
10 Serial Peripheral Interface 33
11 Timers 36
11.1 Peripheral Timer/Counters 36
11.1.1 Pulse Width Modulation Mode 37
11.1.2 Capture Mode 37
11.1.3 Counter/Timer Mode 38
11.1.4 Delta-Sigma Mode 38
11.1.5 Example Timer / Counter Application 39
11.2 Tick Timer 39
11.3 Wakeup Timers 40
11.3.1 RC Oscillator Calibration 41
12 Pulse Counters 42
13 Serial Communications 43
13.1 Interrupts 44
13.2 UART Application 44
14 JTAG Debug Interface 45
15 Two-Wire Serial Interface 46
15.1 Connecting Devices 46
15.2 Clock Stretching 47
15.3 Master Two-wire Serial Interface 47
15.4 Slave Two-wire Serial Interface 48
16 Four-Wire Digital Audio Interface 49
17 Random Number Generator 51
18 Sample FIFO 52
19 Intelligent Peripheral Interface 53
19.1 Data Transfer Format 53
19.2 JN5148 (Slave) Initiated Data Transfer 54
19.3 Remote (Master) Processor Initiated Data Transfer 54