MRF89XAT-I/MQ Microchip Technology, MRF89XAT-I/MQ Datasheet - Page 24

• Manufacturer Part Number: MRF89XAT-I/MQ
• Description: RF ISM BAND TXRX 32 QFN
• Manufacturer: Microchip Technology
• Series: -r

Specifications of MRF89XAT-I/MQ

• Frequency: 863MHz ~ 870MHz, 902MHz ~ 928MHz, 950MHz ~ 960MHz
• Data Rate - Maximum: 200 kbps
• 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
• Memory Size: *
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Rf Ic Case Style: QFN
• No. Of Pins: 32
• Svhc: No SVHC (20-Jun-2011)
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MRF89XAT-I/MQTR

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