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SH7052 Datasheet(PDF) 538 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 538 Page - Renesas Technology Corp |
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538 / 919 page ![]() 512 15.2.4 Mailbox Configuration Register (MBCR) The mailbox configuration register (MBCR) is a 16-bit readable/writable register that is used to set mailbox (buffer) transmission/reception. Bit: 15 14 13 12 11 10 9 8 MBCR7 MBCR6 MBCR5 MBCR4 MBCR3 MBCR2 MBCR1 — Initial value: 0 0 0 0 0 0 0 1 R/W: R/W R/W R/W R/W R/W R/W R/W R Bit: 7 6 5 4 3 2 1 0 MBCR15 MBCR14 MBCR13 MBCR12 MBCR11 MBCR10 MBCR9 MBCR8 Initial value: 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R/W • Bits 15 to 9 and 7 to 0—Mailbox Setting Register (MBCR7 to 1, MBCR15 to 8): These bits set the polarity of the corresponding mailboxes (buffers). Bit x: MBCRx Description 0 Corresponding mailbox is set for transmission (Initial value) 1 Corresponding mailbox is set for reception • Bit 8—Reserved: This bit always reads 1. The write value should always be 1. 15.2.5 Transmit Wait Register (TXPR) The transmit wait register (TXPR) is a 16-bit readable/writable register that is used to set a transmit wait after a transmit message is stored in a mailbox (buffer) (CAN bus arbitration wait). Bit: 15 14 13 12 11 10 9 8 TXPR7 TXPR6 TXPR5 TXPR4 TXPR3 TXPR2 TXPR1 — Initial value: 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R Bit: 7 6 5 4 3 2 1 0 TXPR15 TXPR14 TXPR13 TXPR12 TXPR11 TXPR10 TXPR9 TXPR8 Initial value: 0 0 0 0 0 0 0 0 R/W: R/W R/W R/W R/W R/W R/W R/W R/W |
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