Panasonic F77G User Manual page 374

Chapter 11 Serial Interface 0, 1
The following items are same to clock synchronous serial.
Reference as follows ;
First Transfer Bit Setup
Refer to : XI-21
Transmission Data Buffer
Refer to : XI-21
Received Data Buffer
Refer to : XI-21
Transfer Bit Count and First Transfer Bit
Refer to : XI-22
Receive Bit Count and First Transfer Bit
Refer to : XI-22
Transmission Buffer Empty Flag
Refer to : XI-25
Emergency Reset
Refer to : XI-26
XI - 48
Operation