NEC UPD703116 User Manual page 499

Figure 10-28. Timing Chart of Interrupt Request Signal Output in Delay Mode (2/2)
Input clock
SCKn (I/O)
SIn (input) DI7
SOn (output) DO7
Reg_R/W
INTCSIn
interrupt
CSOTn bit
Remarks 1. n = 0, 1
2. Reg_R/W:
CHAPTER 10 SERIAL INTERFACE FUNCTION
(b) When CKP bit = 1, DAP bit = 1
DI6 DI5
DO6 DO5 DO4
Internal signal. This signal indicates that receive data buffer register (SIRBn/
SIRBLn) read or transmit data buffer register (SOTBn/SOTBLn) write was
performed.
User's Manual U14492EJ5V0UD
DI4 DI3 DI2
DO3 DO2
DI1 DI0
DO1 DO0
Delay
499