Rev. 1.0, 09/02, page 304 of 568
Bit
Bit Name
Initial Value
R/W
Description
1 MPB
0
R
Multiprocessor
Bit
MPB stores the multiprocessor bit in the receive
data. When the RE bit in SCR is cleared to 0 its
previous state is retained.
0 MPBT
0
R/W Multiprocessor
Bit
Transfer
MPBT stores the multiprocessor bit to be added to
the transmit data.
•
Smart Card Interface Mode (When SMIF in SCMR is 1)
Bit
Bit Name
Initial Value
R/W
Description
7
TDRE
1
R/W
Transmit Data Register Empty
Displays whether TDR contains transmit data.
[Setting conditions]
•
When the TE bit in SCR is 0
•
When data is transferred from TDR to TSR
and data can be written to TDR
[Clearing conditions]
•
When 0 is written to TDRE after reading TDRE
= 1
•
When the DTC is activated by a TXI interrupt
request and writes data to TDR
6
RDRF
0
R/W
Receive Data Register Full
Indicates that the received data is stored in RDR.
[Setting condition]
•
When serial reception ends normally and
receive data is transferred from RSR to RDR
[Clearing conditions]
•
When 0 is written to RDRF after reading RDRF
= 1
•
When the DTC is activated by an RXI interrupt
and transferred data from RDR
The RDRF flag is not affected and retains their
previous values when the RE bit in SCR is cleared
to 0.
Summary of Contents for H8S/2627
Page 22: ...Rev 1 0 09 02 page xx of xxxvi Index 565 ...
Page 30: ...Rev 1 0 09 02 page xxviii of xxxiv ...
Page 36: ...Rev 1 0 09 02 page xxxiv of xxxiv Table 23 9 Flash Memory Characteristics 561 ...
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