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H8SX/1663R データシート(PDF) 208 Page - Renesas Technology Corp |
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H8SX/1663R データシート(HTML) 208 Page - Renesas Technology Corp |
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208 / 1504 page ![]() Section 8 User Break Controller (UBC) Rev. 2.00 Sep. 24, 2008 Page 176 of 1468 REJ09B0412-0200 8.3.3 Break Control Register n (BRCRA, BRCRB, BRCRC, BRCRD) BRCRA, BRCRB, BRCRC, and BRCRD are used to specify and control conditions for channels A, B, C, and D of the UBC. Bit: Initial Value: R/W: [Legend] n = Channels A to D 15 − 0 R/W 14 − 0 R/W 13 CMFCPn 0 R/W 12 − 0 R/W 11 CPn2 0 R/W 8 − 0 R/W 10 CPn1 0 R/W 9 CPn0 0 R/W 7 − 0 R/W 6 − 0 R/W 5 IDn1 0 R/W 4 IDn0 0 R/W 3 RWn1 0 R/W 0 − 0 R/W 2 RWn0 0 R/W 1 − 0 R/W Bit Bit Name Initial Value R/W Description 15 14 0 0 R/W R/W Reserved These bits are always read as 0. The write value should always be 0. 13 CMFCPn 0 R/W Condition Match CPU Flag UBC break source flag that indicates satisfaction of a specified CPU bus cycle condition. 0: The CPU cycle condition for channel n break requests has not been satisfied. 1: The CPU cycle condition for channel n break requests has been satisfied. 12 0 R/W Reserved These bits are always read as 0. The write value should always be 0. 11 10 9 CPn2 CPn1 CPn0 0 0 0 R/W R/W R/W CPU Cycle Select These bits select CPU cycles as the bus cycle break condition for the given channel. 000: Break requests will not be generated. 001: The bus cycle break condition is CPU cycles. 01x: Setting prohibited 1xx: Setting prohibited 8 7 6 0 0 0 R/W R/W R/W Reserved These bits are always read as 0. The write value should always be 0. |
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