h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 401
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h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 401 of 766
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• Smart Card Interface Mode (When SMIF in SCMR is 1)
Bit
7
6
5
4
Bit Name
TDRE
RDRF
ORER
ERS
Initial
Value
1
0
0
0
R/W
R/W
R/W
R/W
R/W
Receive Data Register Full
Overrun Error
Description
Transmit Data Register Empty
Displays whether TDR contains transmit data.
[Setting conditions]
•
•
[Clearing conditions]
•
•
Indicates that the received data is stored in RDR.
[Setting condition]
•
[Clearing conditions]
•
•
The RDRF flag is not affected and retains their previous
values when the RE bit in SCR is cleared to 0.
[Setting condition]
•
[Clearing condition]
•
Error Signal Status
[Setting condition]
•
[Clearing conditions]
•
When the TE bit in SCR is 0
When data is transferred from TDR to TSR and data
can be written to TDR
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
When serial reception ends normally and receive
data is transferred from RSR to RDR
When 0 is written to RDRF after reading RDRF = 1
When the DTC is activated by an RXI interrupt and
transferred data from RDR
When the next serial reception is completed while
RDRF = 1
When 0 is written to ORER after reading ORER = 1
When the low level of the error signal is sampled
When 0 is written to ERS after reading ERS = 1
Section 13 Serial Communication Interface (SCI)
Rev. 2.00 Dec. 05, 2005 Page 363 of 724
REJ09B0200-0200
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