NEC 78K0 Series User Manual page 400

8-bit single-chip microcontrollers

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(a) Type 1: CKP1n = 0, DAP1n = 0, DIR1n = 0

SI1n capture

Writing to SOTB1n or

reading from SIO1n

(b) Type 2: CKP1n = 0, DAP1n = 1, DIR1n = 0

SI1n capture

Writing to SOTB1n or

reading from SIO1n

SI1n capture

Writing to SOTB1n or

reading from SIO1n

(d) Type 4: CKP1n = 1, DAP1n = 1, DIR1n = 0

SI1n capture

Writing to SOTB1n or

reading from SIO1n

Remarks 1. n = 0:

2. The above figure illustrates a communication operation where data is transmitted with the MSB first.

CHAPTER 16 SERIAL INTERFACES CSI10 AND CSI11

Figure 16-10. Timing of Clock/Data Phase

PD78F0531, 78F0532, 78F0533

PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D

Preliminary User's Manual U17260EJ3V1UD

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