NEC 78K0R/KE3 User Manual page 374

(4) Processing flow (in continuous transmission mode)
Figure 11-30. Timing Chart of Master Transmission (in Continuous Transmission Mode)
SS0n
ST0n
SE0n
SDR0n
Transmit data 1
SCKp pin
SOp pin
Shift
register 0n
INTCSIp
Data transmission (8-bit length)
MD0n0
TSF0n
BFF0n
<1> <2> <3>
(Note)
Note When transmit data is written to the SDR0n register while BFF0n = 1, the transmit data is overwritten.
Caution The MD0n0 bit can be rewritten even during operation.
However, rewrite it before transfer of the last bit is started, so that it will be rewritten before
the transfer end interrupt of the last transmit data.
Remark n: Channel number (n = 0, 2), p: CSI number (p = 00, 10)
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CHAPTER 11 SERIAL ARRAY UNIT
(Type 1: DAP0n = 0, CKP0n = 0)
Transmit data 2
Transmit data 1
Shift operation
Data transmission (8-bit length)
<2>
<3> <2>
User's Manual U17854EJ9V0UD
Transmit data 3
Transmit data 2
Shift operation
Data transmission (8-bit length)
<3>
Transmit data 3
Shift operation
<4> <5> <6>