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MEC1632 Datasheet(PDF) 166 Page - Microchip Technology |
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MEC1632 Datasheet(HTML) 166 Page - Microchip Technology |
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166 / 636 page  MEC1632 DS00001592B-page 166 2012-2018 Microchip Technology Inc. MEMORY_WRITE_LIMIT_0[14:2] Whenever a write of any byte in EC Data Register is attempted and bit 15 of EC_Address is 0, the field EC_Ad- dress[14:2] in the EC Address Register is compared to this field. As long as EC_Address[14:2] is less than Memo- ry_Write_Limit_0[14:2] the addressed bytes in the EC Data Register will be written into the DCCM. If EC_Address[14:2] is greater than or equal to Memory_Write_Limit_0[14:2] no writes will take place. 8.6.11 MEMORY BASE ADDRESS 1 REGISTER This register is accessible to the EC only. MEMORY_BASE_ADDRESS_1[23:2] This register defines the beginning of a region in the Embedded Controller’s Data Closely Coupled Memory that is shared between the Host and the EC. The region defined by this base register, Region 1, is used when bit 15 of the EC Address Register is 1. The access will be to a memory location at an offset defined by the contents of the EC Address Register, relative to the beginning of the region defined by this register. Therefore, a read or write to the memory that is triggered by the EC Data Register will occur at DCCM_Base_Address + Memory_Base_Address_1[23:2] + EC_Ad- dress[14:2]. For example, if Region = 1, the Memory_Base_Address_1[23:2] = 1000h and the EC_Address[14:2] = 20h, then the AHB address of the access will be 80_1020h. TABLE 8-15: MEMORY BASE ADDRESS 1 REGISTER HOST OFFSET N/A N/A HOST SIZE EC OFFSET 10Ch 32-bit EC SIZE POWER VTR 0000_0000h VTR POR DEFAULT BUS LPC SPB BYTE3 BIT D31 D30 D29 D28 D27 D26 D25 D24 HOST TYPE - ---- - - - EC TYPE R RRRRR R R BIT NAME Reserved BYTE2 BIT D23 D22 D21 D20 D19 D18 D17 D16 HOST TYPE - ---- - - - EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Memory_Base_Address_1[23:16] BYTE1 BIT D15 D14 D13 D12 D11 D10 D9 D8 HOST TYPE - ---- - - - EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Memory_Base_Address_1[15:8] BYTE0 BIT D7 D6D5 D4D3D2 D1 D0 HOST TYPE - ---- - - - EC TYPE R/W R/W R/W R/W R/W R/W R R BIT NAME Memory_Base_Address_1[7:2] Reserved |
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