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SH7018 Datasheet(PDF) 305 Page - Renesas Technology Corp |
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SH7018 Datasheet(HTML) 305 Page - Renesas Technology Corp |
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305 / 431 page  289 Port B Control Register 1 (PBCR1) Bit: 15 14 13 12 11 10 9 8 —— —— ——— — Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R R R R Bit: 7 6 5 4 3 2 1 0 — — — — PB9MD1 PB9MD0 PB8MD1 PB8MD0 Initial value: 0 0 0 0 0 0 0 0 R/W: R R R R R/W R/W R/W R/W Bits 15 to 4—Reserved: These bits are always read as 0. The write value should always be 0. Bits 3 and 2—PB9 Mode 1 and 0 (PB9MD1, PB9MD0): These bits select the function of the PB9/ IRQ7/A21 pin. Bit 3: PB9MD1 Bit 2: PB9MD0 Description 0 0 General input/output (PB9) (Initial value) 1 Interrupt request input ( IRQ7) 1 0 Address output (A21) 1 Reserved Bits 1 and 0—PB8 Mode 1 and 0 (PB8MD1, PB8MD0): These bits select the function of the PB8/ IRQ6/A20/WAIT pin. Bit 1: PB8MD1 Bit 0: PB8MD0 Description 0 0 General input/output (PB8) (Initial value) 1 Interrupt request input ( IRQ6) 1 0 Address output (A20) 1 Wait state request input ( WAIT) |
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