Data Length Select Function - NEC V850E/RS1 User Manual

14.3.3 Data Length Select Function

Transmission data length is selectable from 8 bits to 16 bits using the CCL[3:0] bits in CSIL register. The
examples below show the communication with MSB first (DIR = 1):
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Chapter 14 Queued CSI (CSI30, CSI31)
Figure 14-13: Data Length Select Function
CCL[3:0] = [0,0,0,0] (data length = 16):
SCK3
DO15 DO14 DO13 DO12
SO3
SI3 DI15 DI14 DI13
CCL[3:0] = [1,1,1,0] (data length = 14):
SCK3
SO3 DO13 DO12 DO11 DO10
SI3 DI13 DI12 DI11
User's Manual U16702EE3V2UD00
DO2 DO1 DO0
DI12 DI2 DI1 DI0
DO2 DO1 DO0
DI10 DI2 DI1 DI0