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R01UH0336EJ0102 Rev.1.02
Page 1175 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 21 Clocked Serial Interface G (CSIG)
(2)
Slave Mode
In slave mode, another device is the communication master. The external
clock is received by signal CSIGnTSCK. Transmit/receive operation starts as
soon as a clock signal is detected.
Slave mode is selected by setting CSIGnCTL2.CSIGnPRS[2:0] to 111
B
.
Note
When using slave mode, disable the baud rate generator (BRG) by clearing
bits CSIGnCTL2.CSIGnBRS[11:0].
The example below shows the communication in slave mode for 8 data bits,
CSIGnCTL1.CSIGnCKR = 0, CSIGnCFG0.CSIGnDAP = 0, and MSB first:
Figure 21-3
Transmit/Receive in Slave Mode
21.3.2
Master/Slave Connections
Figure 21-4
Simple Master/Slave Connection
DO7
DO6
DO5
DO4
DO3
DO2
DO1
DO0
DI7
DI6
DI0
CSIGnTSCK
CSIGnTSI
CSIGnTSO
DI5
DI4
DI3
DI2
DI1
Master
CSIGnTSCK (out)
CSIGnTSCK (in)
CSIGnTSO
CSIGnTSI
CSIGnTSI
CSIGnTSO
Slave
Содержание V850 Series
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