M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 605

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

CBnTMS
Notes 1. These bits can only be rewritten when the CBnPWR bit = 0.
CBnDIR
• When using single transmission or transmission/reception mode with
• When using DMA, use the continuous transfer mode.
CBnSCE
• In master mode
• In slave mode
• In single transmission or transmission/reception mode, or continuous transmission
This bit enables or disables the communication start trigger.
(a) In single reception mode
(b) In continuous reception mode
This bit enables or disables the communication start trigger.
(a) In single reception mode or continuous reception mode
or transmission/reception mode
The function of the CBnSCE bit is invalid. It is recommended to set this bit to 1.
communication type 2 or 4 (CBnCTL1.CBnDAP bit = 1), write the transfer data to
the CBnTX register after checking that the CBnSTR.CBnTSF bit is 0.
0
1
0
1
0
1
Clear the CBnSCE bit to 0 before reading the receive data
(CBnRX register)
Clear the CBnSCE bit to 0 one communication clock before reception of the
last data is ended
Set the CBnSCE bit to 1
Note 1
Note 1
2. If the CBnSCE bit is read while it is 1, the next communication
3. The CBnSCE bit is not cleared to 0 one communication clock
4. To start the reception, a dummy read is necessary.
Single transfer mode
Continuous transfer mode
Communication start trigger invalid
Communication start trigger valid
MSB first
LSB first
CHAPTER 15 CLOCKED SERIAL INTERFACE B (CSIB)
However, the CBnPWR can be set to 1 at the same time as these
bits are rewritten.
operation is started.
before the end of the last data reception, the next communication
operation is automatically started.
To start communication operation again after reading the last
data, set the CBnSCE bit to 1 and perform a dummy read of the
CBnRX register.
Specification of transfer direction mode (MSB/LSB)
Note 2
Note 3
Specification of start transfer disable/enable
.
User’s Manual U16543EJ4V0UD
.
Note 4
Transfer mode specification
.
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