EM250-RCM-R Ember, EM250-RCM-R Datasheet - Page 43

• Manufacturer Part Number: EM250-RCM-R
• Description: EM250 RCM BOARD
• Manufacturer: Ember
• Type: Transceiver, 802.15.4/ZigBeer

Specifications of EM250-RCM-R

• Frequency: 2.4GHz
• For Use With/related Products: EM250
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 636-1023

2
2
2
2
2
2
2
1
1
1
1
1
1
1
SC1_SPICFG
0
0
0
0
1
-
-
Serialized SC1 SPI transmit data is driven to the output pin MO. SC1 SPI master data is received from the input
pin MI. To generate slave select signals to SPI slave devices, other GPIO pins have to be used and their asser-
tion must be controlled by software.
Characters transmitted and received are passed through transmit and receive FIFOs. The transmit and receive
FIFOs are 4 bytes deep. These FIFOs are accessed under software control by accessing the
ister or under hardware control using a DMA controller.
When a transmit character is written to the (empty) transmit FIFO, the register bit
SC1_SPISTAT
acters can be written to the transmit FIFO until it is full, which causes the register bit
SC1_SPISTAT
character becomes available in the transmit FIFO. This causes the register bit
SC1_SPISTAT
the register bit
Any character received is stored in the (empty) receive FIFO. The register bit
SC1_SPISTAT
software or DMA is not reading from the receive FIFO, the receive FIFO will store up to 4 characters. Any fur-
0
0
1
1
-
-
-
0
1
0
1
-
-
-
SC1-3M
mode
SC1-3M
mode
SC1-3M
mode
SC1-3M
mode
SC1-3M
mode
SC1-2 mode
SC1-4A
mode
register clears and indicates that not all characters are transmitted yet. Further transmit char-
register to clear. After shifting one transmit character to the MO pin, space for one transmit
register to get set. After all characters are shifted out, the transmit FIFO empties, which causes
register is set to indicate that not all received characters are read out from receive FIFO. If
SC_SPITXIDLE
Table 21. SC1 SPI Master Frame Format
MCLK
MCLK
MCLK
Frame Format
Same as above except LSB first instead of MSB first
Illegal
Illegal
MCLK
MO
MO
MO
MO
MI
MI
MI
in the
MI
out
out
out
out
out
out
in
out
out
in
in
in
SC1_SPISTAT
Page 43
RX[7]
RX[7]
TX[7]
RX[7]
TX[7]
TX[7]
TX[7]
RX[7]
TX[6]
RX[6]
TX[6]
RX[6]
TX[6]
RX[6]
RX[6]
TX[6]
register to get set also.
RX[5]
TX[5]
RX[5]
TX[5]
RX[5]
TX[5]
RX[5]
TX[5]
RX[4]
RX[4]
RX[4]
TX[4]
RX[4]
TX[4]
TX[4]
TX[4]
RX[3]
TX[3]
RX[3]
RX[3]
RX[3]
TX[3]
TX[3]
TX[3]
SC_SPIRXVAL
SC_SPITXFREE
RX[2]
TX[2]
TX[2]
RX[2]
TX[2]
RX[2]
RX[2]
TX[2]
SC_SPITXIDLE
SC_SPITXFREE
TX[1]
RX[1]
TX[1]
RX[1]
TX[1]
RX[1]
RX[1]
TX[1]
SC1_DATA
in the
in the
EM250
RX[0]
120-0082-000S
TX[0]
RX[0]
RX[0]
TX[0]
TX[0]
RX[0]
TX[0]
in the
data reg-
in the