NEC mPD780065 Series Preliminary User's Manual page 234

Figure 14-9. Buffer RAM Operation in 6-Byte Transmission/Reception
FADFH
Receive data 1 (R1)
FAC5H
Receive data 2 (R2)
Receive data 3 (R3)
Transmit data 4 (T4)
Transmit data 5 (T5)
Transmit data 6 (T6)
FAC0H
FADFH
FAC5H Receive data 1 (R1)
Receive data 2 (R2)
Receive data 3 (R3)
Receive data 4 (R4)
Receive data 5 (R5)
FAC0H Receive data 6 (R6)
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CHAPTER 14 SERIAL INTERFACE (SIO1)
(in Basic Transmit/Receive Mode) (2/2)
(b) 4th byte transmission/reception
(c) Completion of transmission/reception
Preliminary User's Manual U13420EJ2V0UM00
Receive data 4 (R4) SIO1
2 ADTP0
_ 1
0 CSIIF1
SIO1
0 ADTP0
1 CSIIF1