Table of Contents
Advertisement
(7)
Clocked serial interface transmission buffer registers 0, 1 (SOTB0, SOTB1)
The SOTBn register is a 16-bit buffer register that stores transmit data (n = 0, 1).
When the transmission/reception mode is set (TRMD bit of CSIMn register = 1), the transmission
operation is started by writing data to the SOTBn register.
This register can be read/written in 16-bit units.
Figure 12-28: Clocked Serial Interface Transmission Buffer Registers 0, 1 (SOTB0, SOTB1)
15
14
13
SOTB0 SOTB15 SOTB14 SOTB13 SOTB12 SOTB11 SOTB10 SOTB9 SOTB8 SOTB7 SOTB6 SOTB5 SOTB4 SOTB3 SOTB2 SOTB1 SOTB0 FFFFF904H 0000H
15
14
13
SOTB1 SOTB15 SOTB14 SOTB13 SOTB12 SOTB11 SOTB10 SOTB9 SOTB8 SOTB7 SOTB6 SOTB5 SOTB4 SOTB3 SOTB2 SOTB1 SOTB0 FFFFF914H 0000H
Bit Position
15 to 0
Cautions: 1. Access the SOTBn register only when the 16-bit data length is set (CCL bit of
CSIMn register = 1).
2. When the single transfer mode is set (AUTO bit of CSIMn register = 0), perform
access only in the idle state (CSOT bit of CSIMn register = 0). If the SOTBn register
is accessed during data transfer, the data cannot be guaranteed.
Chapter 12 Serial Interface Function
12
11
10
9
12
11
10
9
Bit Name
Function
SOTB15 to
Store transmit data.
SOTB0
Preliminary User's Manual U14913EE1V0UM00
8
7
6
5
4
8
7
6
5
4
3
2
1
0
Address
3
2
1
0
Address
Initial
value
Initial
value
347
Advertisement
Table of Contents
