NEC uPD78P078 - Manual (Page 439)

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CHAPTER 19 SERIAL INTERFACE CHANNEL 1
Figure 19-10. Buffer RAM Operation in 6-byte Transmission/Reception
(in Basic Transmit/Receive Mode) (2/2)
(b) 4th byte transmission/reception
Receive data 1 (R1)
Receive data 2 (R2)
Receive data 3 (R3)
Transmit data 4 (T4)
Transmit data 5 (T5)
Transmit data 6 (T6)
FADFH
FAC5H
FAC0H
Receive data 4 (R4) SIO1
0 CSIIF1
2 ADTP
–1
Receive data 1 (R1)
Receive data 2 (R2)
Receive data 3 (R3)
Receive data 4 (R4)
Receive data 5 (R5)
Receive data 6 (R6)
FADFH
FAC5H
FAC0H
SIO1
1 CSIIF1
0 ADTP
(c) Completion of transmission/reception