12-2-3 Mode Registers - Panasonic F77G User Manual

Chapter 12 Serial Interface 3

12-2-3 Mode Registers

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