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SH7052 Datasheet(PDF) 670 Page - Renesas Technology Corp |
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SH7052 Datasheet(HTML) 670 Page - Renesas Technology Corp |
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670 / 919 page  644 18.3.17 Port H Control Register (PHCR) Bit: 15 14 13 12 11 10 9 8 PH15 MD PH14 MD PH13 MD PH12 MD PH11 MD PH10 MD PH9 MD PH8 MD 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 Bit: 7 6 5 4 3 2 1 0 PH7 MD PH6 MD PH5 MD PH4 MD PH3 MD PH2 MD PH1 MD PH0 MD 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 The port H control register (PHCR) is a 16-bit readable/writable register that selects the functions of the 16 multiplex pins in port H. PHCR settings are not valid in all operating modes. 1. Expanded mode with on-chip ROM disabled (area 0: 8-bit bus) Port H pins D0 to D7 function as data input/output pins, and PHCR settings are invalid. 2. Expanded mode with on-chip ROM disabled (area 0: 16-bit bus) Port H pins function as data input/output pins, and PHCR settings are invalid. 3. Expanded mode with on-chip ROM enabled Port H pins are multiplexed as data input/output pins and general input/output pins. PHCR settings are valid. 4. Single-chip mode Port H pins function as general input/output pins, and PHCR settings are invalid. PHCR is initialized to H'0000 by a power-on reset (excluding a WDT power-on reset), and in hardware standby mode. It is not initialized in software standby mode or sleep mode. |
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