tmp89fm82 TOSHIBA Semiconductor CORPORATION, tmp89fm82 Datasheet - Page 281

• Manufacturer Part Number: tmp89fm82
• Description: 8 Bit Microcontroller Tlcs-870/c1 Series
• Manufacturer: TOSHIBA Semiconductor CORPORATION

RA000
(0F7CH)
17.2.2
(0F7BH)
17.2.3
SEDR
SESR
Note 1: The SEF flag is automatically set at completion of transfer. The SEF flag thus set is automatically cleared by reading the
Note 2: TheSESR< WCOL> flag is automatically set by a write to the SEDR register while transfer is in progress. Refer "17.8.2
Note 3: The SESR<SOVF> flag is automatically set when the device finishes reading the next data while the SEF flag is set. Refer
Note 4: The SESR<MODF> flag is set when the SS pin is driven to low. Refer"17.8.1 Mode fault error " for detail. During slave
Note 5: The SESR<SSEF> flag is set when the SS pin change from "L" level to "H" level during data transfer. Refer "17.8.4
is initiated by writing to this SEDR register. If the master device needs to write to the SEDR register after transfer
began, always check to see by means of an interrupt or by polling that the SEF flag (SESR<SEF>) is set, before
writing to the SEDR register.
The SEI Data Register (SEDR) is used to send and receive data. When the SEI is set for master, data transfer
SEI Status Register (SESR)
SEI Data Register (SEDR)
SED7
SEF
7
7
(2)
SESR register and accessing the SEDR register.
Write collision error" for detailt.
"17.8.3 Overflow error " for detail. During master mode, this bit does not function; and the read data is “0”..
mode:, this bit does not function; and the read data is 0.
Transfer error " for detail. During master mode:, this bit does not function; and the read data is 0.
WCOL
MODF
SOVF
SSEF
SEF
SER bit has no effect. The maximum transfer rate is fcgck/2.
When the SEI is operating as a slave, the serial clock is input from the master and the setting of the
Note:Take note of the following relationship between the serial clock speed and fcgck on the master
Slave mode
WCOL
SED6
6
6
Transfer-finished flag (Note1)
Write collision error flag (Note2)
Overflow error flag (slave) (Note3)
Mode fault flow error flag (master) (Note4)
Transfer error flag (slave) (Note5)
side:
15.625 kbps < Transfer rate < fcgck/2 bps
Example) 15.625 kbps < Transfer rate < 4 Mbps (fcgck = 8 MHz at V
15.625 kbps < Transfer rate < 0.5 Mbps (fcgck = 1 MHz at V
SOVF
SED5
5
5
MODF
SED4
4
4
SSEF
SED3
3
3
Page 265
SED2
2
2
0: Transfer in progress
1: Transfer completed
0: No write collision error occurred
1: Write collision error occurred
0: No overflow occurred
1: Overflow occurred
0: No mode fault occurred
1: Mode fault occurred
0: No transfer error occurred
1: Ttransfer error occurred
SED1
1
1
SED0
0
0
DD
= 4.5 to 5.5 V)
(Initial value: 0000 0***)
R/W (Initial value: 0000 0000)
DD
= 4.5 to 5.5 V)
TMP89FM82
Read only