PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
11.8 ADC Configuration Register Contents ................................................................. 40
11.9 ADC Data Register Contents............................................................................... 40
11.10 Status Register Contents ..................................................................................... 40
12 Tranceiver Subsytem Timing....................................................................................... 41
12.1 Device Switching Times ..................................................................................... 41
12.2 ShockBurstTM TX Timing.................................................................................... 41
12.3 ShockBurstTM RX Timing.................................................................................... 42
13 SPI............................................................................................................................ 43
14 PWM......................................................................................................................... 44
15 Interrupts ................................................................................................................... 45
15.1 Interrupt SFRs.................................................................................................... 45
15.2 Interrupt Processing............................................................................................ 48
15.3 Interrupt Masking ............................................................................................... 48
15.4 Interrupt Priorities .............................................................................................. 48
15.5 Interrupt Sampling.............................................................................................. 49
15.6 Interrupt Latency................................................................................................ 50
15.7 Interrupt Latency from Power Down State. .......................................................... 50
15.8 Single-Step Operation......................................................................................... 50
16 LF Clock Wakeup Functions and Watchdog................................................................. 51
16.1 The LF Clock..................................................................................................... 51
16.2 Tick Calibration.................................................................................................. 51
16.3 RTC Wakeup Timer............................................................................................ 52
16.4 Programmable GPIO Wakeup Function................................................................ 52
16.5 Watchdog........................................................................................................... 53
16.6 Programming Interface to Watchdog and Wakeup Functions ................................. 53
16.7 Reset................................................................................................................. 55
17 Power Saving Modes .................................................................................................. 57
17.1 Standard 8051 Power Saving Modes.................................................................... 57
17.2 Additional Power Down Modes........................................................................... 58
18 Microcontroller........................................................................................................... 60
18.1 Memory Organization......................................................................................... 60
18.2 Program Format in External EEPROM................................................................ 61
18.3 Instruction Set.................................................................................................... 62
18.4 Instruction Timing .............................................................................................. 68
18.5 Dual Data Pointers.............................................................................................. 68
18.6 Special Function Registers .................................................................................. 69
18.7 SFR Registers Unique to nRF9E5........................................................................ 73
18.8 Timers/Counters................................................................................................. 74
18.9 Serial Interface................................................................................................... 81
19 Package Outline.......................................................................................................... 92
20 PCB Layout and Decoupling Guidelines ...................................................................... 93
21 Application Examples................................................................................................. 94
21.1 Differential Connection to a Loop Antenna .......................................................... 94
21.2 PCB Layout Example, Differential Connection to a Loop Antenna ........................ 96
21.3 Single Ended Connection to 50W Antenna............................................................ 97
21.4 PCB Layout Example, Single Ended Connection to 50W Antenna ......................... 99
21.5 Configure the Chip as nRF905............................................................................. 99
22 Absolute Maximum Ratings .......................................................................................100
23 Glossery of Terms .....................................................................................................101
24 Definitions ................................................................................................................102
25 Your Notes ...............................................................................................................103
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900
Revision: 1.1 Page 4 of 104
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Fax +4772898989
June 2004
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