© NXP Laboratories UK 2012
JN-DS-JN5142 1v0
3
8 Wireless Transceiver
27
8.1 Radio
27
8.1.1 Radio External Components
28
8.1.2 Antenna Diversity
28
8.2 Modem
30
8.3 Baseband Processor
31
8.3.1 Transmit
31
8.3.2 Reception
31
8.3.3 Auto Acknowledge
32
8.3.4 Beacon Generation
32
8.3.5 Security
32
8.4 Security Coprocessor
32
9 Digital Input/Output
33
10 Serial Peripheral Interface
35
11 Timers
38
11.1 Peripheral Timer/Counters
38
11.1.1 Pulse Width Modulation Mode
39
11.1.2 Capture Mode
39
11.1.3 Counter/Timer Mode
40
11.1.4 Delta-Sigma Mode
40
11.1.5 Example Timer/Counter Application
41
11.2 Tick Timer
41
11.3 Wakeup Timers
42
11.3.1 RC Oscillator Calibration
43
12 Pulse Counters
44
13 Serial Communications
45
13.1 Interrupts
46
13.2 UART Application
46
14 JTAG Debug Interface
48
15 Two-Wire Serial Interface (I
2
C)
49
15.1 Connecting Devices
49
15.2 Clock Stretching
50
15.3 Master Two-wire Serial Interface
50
15.4 Slave Two-wire Serial Interface
52
16 Random Number Generator
53
17 Analogue Peripherals
54
17.1 Analogue to Digital Converter
54
17.1.1 Operation
55
17.1.2 Supply Monitor
56
17.1.3 Temperature Sensor
56
17.2 Comparator
56
18 Power Management and Sleep Modes
57
18.1 Operating Modes
57
18.1.1 Power Domains
57