Datasheet

V850ES/JG3-H, V850ES/JH3-H CHAPTER 18 3-WIRE VARIABLE-LENGTH SERIAL I/O (CSIF)
R01UH0042EJ0500 Rev.5.00 Page 774 of 1513
Aug 12, 2011
(a) Transfer data length change function
The CSIFn transfer data length can be set in 1-bit units between 8 and 16 bits using the CFnCTL2.CFnCL3 to
CFnCTL2.CFnCL0 bits.
When the transfer bit length is set to a value other than 16 bits, set the data to the CFnTX or CFnRX register
starting from the LSB, regardless of whether the transfer start bit is the MSB or LSB. Any data can be set for
the higher bits that are not used, but the receive data becomes 0 following serial transfer.
(i) Transfer bit length = 10 bits, MSB first
15 10 9 0
SOFn
SIFn
Insertion of 0
(ii) Transfer bit length = 12 bits, LSB first
0
SOFn
111215
SIFn
Insertion of 0