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H8S/2225 数据表(PDF) 618 Page - Renesas Technology Corp |
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H8S/2225 数据表(HTML) 618 Page - Renesas Technology Corp |
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618 / 1071 page ![]() Section 14 IEBus™ Controller (IEB) [H8S/2258 Group] Rev. 5.00 Aug 08, 2006 page 532 of 982 REJ09B0054-0500 Dn H MA SA CF LF D1 D2 Dn-1 Dn IECTR RE RSS CMX MRQ SRQ SRE RxRDY RxS RxF IERxI (RxRDY) (TO DTC) IERxI (RxRDY) (TO CPU) IERSI (TO CPU) IEFLG IEFLG IERSR Interrupt (1) (2) (2) (7) (7) (7) (3) (4) (3) (4) (5) (5) (6) Broadcast reception Slave reception H: Header, MA: Master address field, SA: Slave address field, CF: Control field, LF: Message length field, D1, D2,..., Dn-1, Dn: Data field DTC transfer of 1st byte DTC transfer of (n-2)th byte DTC transfer of (n-1)th byte DTC transfer of nth byte Figure 14.9 Slave Reception Operation Timing (4) When an Error Occurs in Broadcast Reception (DEE = 1) Figure 14.10 shows an example in which a receive error occurs because the receive preparation cannot be completed (the RxRDY flag is not cleared) until the control field is received in broadcast reception after the slave reception while the DEE bit is set to 1. Note: The same as the case in which the RE bit is not set before the control field reception. |
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