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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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MEC1322 датащи(PDF) 135 Page - Microchip Technology |
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MEC1322 датащи(HTML) 135 Page - Microchip Technology |
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135 / 456 page  2014 - 2015 Microchip Technology Inc. DS00001719D-page 135 MEC1322 ACPI-OS DATA BYTES[3:0] Writes by the ACPI_OS to the ACPI-OS DATA BYTES[3:0] are aliased to the OS2EC DATA BYTES[3:0]. Reads by the ACPI_OS from the ACPI-OS DATA BYTES[3:0] are aliased to the EC2OS DATA BYTES[3:0]. All access to the ACPI-OS DATA BYTES[3:0] registers should be orderly: Least Significant Byte to Most Significant Byte when byte access is used. Writes to any of the four ACPI-OS DATA BYTES[3:0] registers clears the CMD bit in the OS STATUS OS Register (the state of the FOUR_BYTE_ACCESS bit in the OS Byte Control Register has no impact.) When the FOUR_BYTE_ACCESS bit in the OS Byte Control Register is cleared to ‘0’, the following access rules apply: 1. Writes to the ACPI OS Data Register Byte 0 Register sets the IBF bit in the OS STATUS OS Register. 2. Reads from the ACPI OS Data Register Byte 0 Register clears the OBF bit in the OS STATUS OS Register. 3. All writes to ACPI-OS DATA BYTES[3:1] complete without error but the data are not registered. 4. All reads from ACPI-OS DATA BYTES[3:1] return 00h without error. 5. Access to ACPI-OS DATA BYTES[3:1] has no effect on the IBF & OBF bits in the OS STATUS OS Register. When the Four Byte Access bit in the OS Byte Control Register is set to ‘1’, the following access rules apply: 1. Writes to the ACPI OS Data Register Byte 3 Register sets the IBF bit in the OS STATUS OS Register. 2. Reads from the ACPI OS Data Register Byte 3 Register clears the OBF bit in the OS STATUS OS Register. 10.12.2 ACPI OS DATA REGISTER BYTE 1 REGISTER This register is aliased; see ACPI-OS DATA BYTES[3:0] on page 135, OS2EC DATA BYTES[3:0] on page 141, and EC2OS DATA BYTES[3:0] on page 142 for detailed description of access rules. 10.12.3 ACPI OS DATA REGISTER BYTE 2 REGISTER This register is aliased; see ACPI-OS DATA BYTES[3:0] on page 135, OS2EC DATA BYTES[3:0] on page 141, and EC2OS DATA BYTES[3:0] on page 142 for detailed description of access rules. 10.12.4 ACPI OS DATA REGISTER BYTE 3 REGISTER This register is aliased; see ACPI-OS DATA BYTES[3:0] on page 135, OS2EC DATA BYTES[3:0] on page 141, and EC2OS DATA BYTES[3:0] on page 142 for detailed description of access rules. Offset 01h Bits Description Type Default Reset Event 7:0 ACPI_OS_DATA_BYTE_1 This is byte 1 of the 32-bit ACPI-OS DATA BYTES[3:0]. R/W 0h VCC1_R ESET Offset 02h Bits Description Type Default Reset Event 7:0 ACPI_OS_DATA_BYTE_2 This is byte 2 of the 32-bit ACPI-OS DATA BYTES[3:0]. R/W 0h VCC1_R ESET Offset 03h Bits Description Type Default Reset Event 7:0 ACPI_OS_DATA_BYTE_3 This is byte 3 of the 32-bit ACPI-OS DATA BYTES[3:0]. R/W 0h VCC1_R ESET |
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