MC13193 Freescale Semiconductor, Inc, MC13193 Datasheet - Page 12

• Manufacturer Part Number: MC13193
• Description: Mc13193 2.4 Ghz, Low Power Transceiver For 802.15.4
• Manufacturer: Freescale Semiconductor, Inc

Functional Description
12
Although the SPI port is fully static, internal memory, timer and interrupt arbiters require an internal clock
(CLK
registers and memory.
6.2.1
The SPI port of an MCU transfers data in bursts of 8 bits with most significant bit (MSB) first. The master
(MCU) can send a byte to the slave (transceiver) on the MOSI line and the slave can send a byte to the
master on the MISO line. Although an MC13192 transaction is three or more SPI bursts long, the timing
of a single SPI burst is shown in
SPI digital timing specifications are shown in
SPICLK
CE
MISO
MOSI
core
), derived from the crystal reference oscillator, to communicate from the SPI registers to internal
SPI Burst Operation
T5
Baud Rate
Generator
Shift Register
MCU
Valid
1
Valid
T4
T7
T6
Figure 8. SPI Single Burst Timing Diagram
Figure
2
MC13192 Technical Data, Rev. 3.2
Chip Enable (CE)
RxD
TxD
Sclk
8.
Figure 7. SPI Interface
3
Table
Valid
4
T3
6.
SPI Burst
5
SPICLK
T2
MISO
MOSI
CE
T1
6
T0
Shift Register
7
MC13192
Freescale Semiconductor
8