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SH7708 Datasheet(PDF) 421 Page - Renesas Technology Corp

No. de pieza SH7708
Descripción Electrónicos  SuperH??RISC engine
PDF  633 Pages
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Fabricante Electrónico  RENESAS [Renesas Technology Corp]
Página de inicio  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7708 Datasheet(HTML) 421 Page - Renesas Technology Corp

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14.2.2
Serial Status Register (SCSSR)
In the smart card interface mode, the function of SCSSR bit 4 is changed. The setting conditions
for bit 2, the TEND bit, are also changed.
Bit:
7
6
5
4
3
2
1
0
Bit name:
TDRE
RDRF
ORER FER/ERS
PER
TEND
MPB
MPBT
Initial value:
1
0
0
0
0
1
0
0
R/W:
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R/(W)*
R
R
R/W
Note:
Only 0 can be written, to clear the flag.
Bits 7 to 5: These bits have the same function as in the ordinary SCI. See section 13, Serial
Communication Interface, for more information.
Bit 4—Error Signal Status (ERS): In the smart card interface mode, bit 4 indicates the status of the
error signal returned from the receiving side during transmission. The smart card interface cannot
detect framing errors.
Bit 4: ERS
Description
0
Receiving ended normally with no error signal.
(Initial value)
ERS is cleared to 0 when the chip is reset or enters standby mode, or when
software reads ERS after it has been set to 1, then writes 0 in ERS.
1
An error signal indicating a parity error was transmitted from the receiving side.
ERS is set to 1 if the error signal sampled is low.
Note:
The ERS flag maintains its status even when the TE bit in SCSCR is cleared to 0.



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