| 전자부품 데이터시트 검색엔진 |
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SH7708 데이터시트(PDF) 421 Page - Renesas Technology Corp |
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SH7708 데이터시트(HTML) 421 Page - Renesas Technology Corp |
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421 / 633 page ![]() 403 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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