MRF89XA-I/MQ Microchip Technology, MRF89XA-I/MQ Datasheet - Page 24

• Manufacturer Part Number: MRF89XA-I/MQ
• Description: TXRX ISM SUB-GHZ ULP 32QFN
• Manufacturer: Microchip Technology

Specifications of MRF89XA-I/MQ

• Package / Case: 32-WFQFN Exposed Pad
• Frequency: 863MHz ~ 870MHz, 902MHz ~ 928MHz, 950MHz ~ 960MHz
• Data Rate - Maximum: 200kbps
• Modulation Or Protocol: FSK, OOK
• Applications: ISM
• Power - Output: 12.5dBm
• Sensitivity: -113dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 3mA
• Current - Transmitting: 25mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 1
• Number Of Transmitters: 1
• Wireless Frequency: 863 MHz to 870 MHz, 902 MHz to 928 MHz, 950 MHz to 960 MHz
• Interface Type: SPI
• Noise Figure: - 112 dBc
• Output Power: - 8.5 dBm, + 12.5 dBm
• Operating Supply Voltage: 2.1 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Data Rate: 256 Kbps
• Maximum Supply Current: 25 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.11.1
Write Register - To write a value into a Configuration
register, the timing diagram illustrated in Figure 2-12
should be followed by the host microcontroller. The
new value of the register is effective from the rising
edge of CSCON.
FIGURE 2-12:
DS70622B-page 24
MRF89XA
Note:
CSCON (In)
SCK (In)
SDI (In)
SDO (Out)
SPI CONFIG
When writing more than one register suc-
cessively, it is not compulsory to toggle
CSCON back high between two write
sequences. The bytes are alternatively
considered as address and value. In this
instance, all new values will become effec-
tive on rising edge of CSCON.
(input)
HZ
* when writing the new value at address A1, the current content of A1 can be read by the µC.
start
1
x
WRITE REGISTER SEQUENCE
rw
2
x
A(4)
3
x
A(3)
Address = A1
4
x
(In)/(Out) refers to MRF89XA side
A(2)
5
x
A(1)
6
x
Preliminary
A(0)
7
x
stop
8
x
D(7) D(6) D(5)
D(7)
9
D(6) D(5)
10
11
Current value at
New value at
address A1
address A1*
D(4) D(3)
D(4) D(3)
12
13
© 2010 Microchip Technology Inc.
D(2) D(1)
D(2) D(1)
14
15
D(0)
16
D(0)
(input)
HZ