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Control Registers
Chapter 12 Serial Interface 3
XII - 6
12-2-3 Mode Registers
Serial Interface 3 Mode Register 0 (SC3MD0)
Figure 12-2-2 Serial Interface 3 Mode Register 0 (SC3MD0 : x'03FA8', R/W)
SC3LNG2
0
SC3LNG1
0
1
0
1
1
2bits
3bits
4bits
Transfer bit count
1bit
0
0
1
1
5bits
6bits
7bits
8bits
0
1
0
1
SC3LNG0
0124
567
3
(At reset: 00 - 0 0 1 1 1 )
SC3MD0
SC3LNG0SC3LNG1SC3LNG2SC3STESC3DIR
-
SC3CE1SC3BSY
0
1
Disable start condition
Synchronous serial data tranfer
start condition
Enable start condition
SC3STE
0
1
MSB first
First bit to be transferred
LSB first
SC3DIR
Falling
Rising Falling
Rising
Transmission data
output edge
Reception data
input edge
0
1
SC3CE1
Other use
Serial transmission in progress
(at clock synchronous
communication)Serial bus status
0
1
SC3BSY
(*R)
* Only read access is available.