SWRA465A August   2014  – July 2015 CC2530 , CC2530 , CC2530-RF4CE , CC2530-RF4CE , CC2592 , CC2592

 

  1.   Using CC2592 Front End With CC2530
    1.     Trademarks
    2. 1  Introduction
    3. 2  Acronyms Used in This Documents
    4. 3  Absolute Maximum Ratings
    5. 4  Electrical Specifications
      1. 4.1 Operating Conditions
      2. 4.2 Current Consumption
      3. 4.3 Receive Parameters
      4. 4.4 Received Signal Strength Indicator (RSSI)
      5. 4.5 Transmit Parameters
      6. 4.6 Output Power Programming
      7. 4.7 Typical Performance Curves
      8. 4.8 IEEE - Transmit Power Spectral Density (PSD) Mask
    6. 5  Application Circuit
      1. 5.1 Power Decoupling
      2. 5.2 Input /Output Matching and Filtering
      3. 5.3 Bias Resistor
      4. 5.4 Antenna Considerations
    7. 6  PCB Layout Considerations
      1. 6.1 The Gain of the CC2592
    8. 7  Regulatory Requirements
      1. 7.1 Compliance of FCC Part 15.247 When Using the CC2530 With the CC2592
    9. 8  Controlling the CC2592
    10. 9  Integrating CC2592 With Z-Stack and TIMAC
    11. 10 References
  2.   A Marker - Delta Method
    1.     A.1
  3.   Revision History

8 Controlling the CC2592

There are three digital control pins (PA_EN, LNA_EN and HGM) on the CC2592 that control the state of the chip. Table 10 shows the control logic when connecting the CC2592 to a CC2530 device.

Table 10. Control Logic for Connecting the CC2592 to a CC2530 Device

PA_EN LNA_EN HGM Mode of Operation
0 0 X Power Down
X 1 0 RX Low Gain Mode
X 1 1 RX High Gain Mode
1 0 X TX

The SimpleLink™ ZigBee® Network Range Extender Reference Design[3] uses three of the CC2530 GPIO pins on the CC2530 to control the CC2592. The I/O pins used are shown in Figure 12. PA_EN and LNA_EN must be controlled by RF observation signals as shown in Figure 12, whereas, the HGM pin can be controlled by any GPIO or alternatively tied to VDD or GND.

interconnect.gifFigure 12. CC2530-CC2592 Interconnect

When using the CC2592 with the CC2530, the RF observation registers must be set according to Table 11. This enables the RF core of CC2530 to control the CC2592 through P1. If required, other P1 pins can be used, see the CC2538 System-on-Chip Solution for 2.4-GHz IEEE 802.15.4 and ZigBee®/ZigBee IP® Applications User's Guide (SWRU319) for details.

Table 11. CC2530 Registers for CC2592 Control

CC2530 REGISTER RECCOMMENDED VALUE
AGCCTRL1 0x15
FSCAL1 0x00
RFC_OBS_CTRL0 0x68
RFC_OBS_CTRL1 0x6A
TXPOWER See Table 6
OBSSEL1 0xFB
OBSSEL0 0xFC
P0DIR 0x80