Table 13.3.1B Setting For Gotm And Gots - Fujitsu F2MC-16LX MB90580 Series Hardware Manual

[bit 11] TIE (Transmit interrupt enable):
This bit controls transmit interrupt as described below.
0
1
The transmit interrupt is occurred under the following condition:
• In master transmit, after master address field has been transmitted, the master unit has won in
arbitration.
• In slave transmit, the control bits requesting for data transmit are received from master unit.
• Writing the number of data bytes (controlled by TIT1, TIT0 bits of command register, CMRL) into write
data buffer (WDB) is requested.
• Transmission of the number of data specified by telegraph length field has been completed in one
communication frame.
• The communication has ended without transmitting the number of data specified by telegraph length
field in one communication frame.
[bit 10] GOTM (Master transmit):
This bit indicates the start of transmission. After the communication inhibit state has been released, when
GOTM is set to '1', data transmission begins. This bit is written '1' only and alwaays read "0". Writing '0' to
this bit has no meaning.
[bit 9] GOTS (Slave transmit):
This bit indicates the start of transmission. After the communication inhibit state has been released, when
GOTS is set to '1', data transmission begins. This bit is written '1' only and always read"0". Writing '0' to
this bit has no meaning.
GOTM GOTS
0 0
0 1
1 0
1 1
[bit 8] Reserved bits
Always write '1' to this bit and the read value is undefined.
MB90580 Series
Transmit interrupt disabled
Transmit interrupt enabled

Table 13.3.1b Setting for GOTM and GOTS

Slave
Abritration
Transmit
none not allowed
none allowed
present not allowed
present allowed
13.3 Registers and Register Details
Operation
slave receive
slave transmit
after abritration lost, it can change to slave receive
after abritration lost, it can change to slave transmit
Chapter 13: IE Bus 147