NEC PD703114 User Manual page 488

(9) Clocked serial interface initial transmit buffer registers 0, 1 (SOTBF0, SOTBF1)
The SOTBFn register is a 16-bit buffer register that stores initial transmission data in the repeat transfer mode
(n = 0, 1).
The transmission operation is not started even if data is written to the SOTBFn register.
These registers can be read/written in 16-bit units.
Caution Access the SOTBFn register only when the 16-bit data length has been set (CCL bit of
CSIMn register = 1), and only in the idle state (CSOTn bit of CSIMn register = 0). If the
SOTBFn register is accessed during data transfer, the data cannot be guaranteed.
15 14 13
SOTBF0 SOTBF SOTBF SOTBF
15 14 13
15 14 13
SOTBF1 SOTBF SOTBF SOTBF
15 14 13
Bit position Bit name
15 to 0 SOTBF15 to
SOTBF0
488
CHAPTER 10 SERIAL INTERFACE FUNCTION
12 11 10 9 8 7
SOTBF SOTBF SOTBF SOTBF SOTBF SOTBF
12 11 10 9 8 7
12 11 10 9 8 7
SOTBF SOTBF SOTBF SOTBF SOTBF SOTBF
12 11 10 9 8 7
Stores initial transmission data in repeat transfer mode.
User's Manual U15195EJ5V0UD
6 5 4 3 2 1
SOTBF SOTBF SOTBF SOTBF SOTBF SOTBF
6 5 4 3 2 1
6 5 4 3 2 1
SOTBF SOTBF SOTBF SOTBF SOTBF SOTBF
6 5 4 3 2 1
Function
0 Address After reset
SOTBF FFFFF908H 0000H
0
0 Address After reset
SOTBF FFFFF918H 0000H
0