User Manual

Jennic
JennicJennic
Jennic
2 JN-DS-JN5139 v1.5 © Jennic 2008
1 Introduction 6
1.1 Wireless Microcontroller 6
1.2 Wireless Transceiver 6
1.3 RISC CPU and Memory 6
1.4 Peripherals 7
1.5 Block Diagram 8
2 Pin Configurations 9
2.1 Pin Assignment 10
2.2 Pin Descriptions 11
2.2.1 Power Supplies 11
2.2.2 Reset 11
2.2.3 16MHz System Clock 11
2.2.4 Radio 11
2.2.5 Analogue Peripherals 11
2.2.6 Digital Input/Output 12
3 CPU 13
4 Memory Organisation 14
4.1 ROM 15
4.2 RAM 15
4.3 OTP eFuse Memory 16
4.4 External Memory 16
4.4.1 Secure External Memory Encryption 16
4.5 Peripherals 17
4.6 Unused Memory Addresses 17
5 System Clocks 18
5.1 16MHz Oscillator 18
5.2 32kHz Oscillator 18
6 Reset 19
6.1 Internal Power-on Reset 19
6.2 External Reset 20
6.3 Software Reset 20
7 Interrupt System 21
7.1 System Calls 21
7.2 Processor Exceptions 21
7.2.1 Bus Error 21
7.2.2 Alignment 21
7.2.3 Illegal Instruction 21
7.3 Hardware Interrupts 22
8 Wireless Transceiver 23
8.1 Radio 23
8.1.1 Radio External components 24
8.1.2 Antenna Diversity 24
8.2 Modem 25
8.3 Baseband Processor 26
8.3.1 Transmit 26