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MEC1632 Datasheet(PDF) 161 Page - Microchip Technology |
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MEC1632 Datasheet(HTML) 161 Page - Microchip Technology |
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161 / 636 page  2012-2018 Microchip Technology Inc. DS00001592B-page 161 MEC1632 REGION When this bit is 0, the address defined by EC_Address[14:2] is relative to the base address specified by the Memory Base Address 0 Register. When this bit is 1, the address defined by EC_Address[14:2] is relative to the base address specified by the Memory Base Address 1 Register. 8.6.4 EC DATA REGISTER DATA This is a 32-bit register which returns data to the Host from the EC DCCM at the address specified by EC_Address[14:2]. The description of bits Access_Type in the EC Address Register defines which reads and writes from the Host trigger transfers of data between this register and the DCCM. A write to the EC Data Register when the EC Address Register is in a read-only or a no-access region, as defined by the Memory Base and Limit registers, will update the EC Data Register but memory will not be modified. A read to the EC Data Register when the EC Address Register is in a no-access region, as defined by the Memory Base and Limit registers, will not trigger a memory read and will not modify the EC Data Register. In auto-increment mode (Access_- Type=11b), reads of Byte 3 of the EC Data Register will still trigger increments of the EC Address Register when the address is out of bounds, while writes of Byte 3 will not. TABLE 8-8: EC DATA REGISTER HOST OFFSET Byte 0: 04h Byte 1: 05h Byte 2: 06h Byte 3: 07h 8-bit HOST SIZE EC OFFSET 04h 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 R/W R/W R/W R/W R/W R/W R/W R/W EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Data3[7:0] BYTE2 BIT D23 D22 D21 D20 D19 D18 D17 D16 HOST TYPE R/W R/W R/W R/W R/W R/W R/W R/W EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Data2[7:0] BYTE1 BIT D15 D14 D13 D12 D11 D10 D9 D8 HOST TYPE R/W R/W R/W R/W R/W R/W R/W R/W EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Data1[7:0] BYTE0 BIT D7 D6D5 D4D3D2 D1 D0 HOST TYPE R/W R/W R/W R/W R/W R/W R/W R/W EC TYPE R/W R/W R/W R/W R/W R/W R/W R/W BIT NAME Data0[7:0] |
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