TMPM330 - Keil

SBIxCR1
Under development
Serial bus interface control register 1
TMPM330 (rev 0.4) 10-28
TMPM330
7 6 5 4 3 2 1 0
bit Symbol SIOS SIOINH SIOM1 SIOM0 SCK2 SCK1 SCK0
Read/Write W R W R/W
After reset 0 0 0 0 1 0 0 0
Function Start
transfer
0: Stop
Transfer Select transfer mode
0: Continue 00: Transmit mode
1: Forced 01: (Reserved)
This can Select serial clock frequency
be read as
“1”.
1: Start
terminatio
n
10: Transmit/receive
mode
11: Receive mode
15 14 13 12 11 10 9 8
bit Symbol
Read/Write R
After reset 0
Function This can be read as “0”.
23 22 21 20 19 18 17 16
bit Symbol
Read/Write R
After reset 0
Function This can be read as “0”.
31 30 29 28 27 26 25 24
bit Symbol
Read/Write R
After reset 0
Function This can be read as “0”.
On writing : Select serial clock frequency
000
001
010
011
100
101
110
111
n = 3
n = 4
n = 5
n = 6
n = 7
n = 8
n = 9
⎯
Fig. 10-21 SIO Mode Registers
1.25 MHz
625 kHz
313 kHz
156 kHz
78 kHz
39 kHz
20 kHz
External clock
System clock : fsys
(=40 MHz)
Clock gear : fc/1
Frequency
fsys/4
=
2
[ Hz ]
n
(Note) Set to "0" and to "1" before programming the transfer mode
and the serial clock.
Serial Bus Interface (SBI)