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MEC1632 bảng dữ liệu(PDF) 82 Page - Microchip Technology |
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MEC1632 bảng dữ liệu(HTML) 82 Page - Microchip Technology |
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82 / 636 page ![]() MEC1632 DS00001592B-page 82 2012-2018 Microchip Technology Inc. 6.3 LPC Logical Device The LPC Logical Device structure is illustrated in Figure 6-1, "LPC Interface in MEC1632". The LPC Logical Device is directly connected to two internal buses, the 32-bit AHB as well as the SPB. The SPB inter- face is 32-bits. In addition, it is connected to the external LPC bus. Host accesses to Configuration Registers for each Logical Device on the MEC1632 are managed by a Configuration block described in Section 5.0, "Logical Device Configuration," on page 63. Configuration registers are accessed through the LPC IO Configuration Register Port. The LPC Logical Device translates the Configuration address to an AHB address and the Host LPC access is converted into an AHB transaction inside the MEC1632. Host I/O accesses to Configuring Runtime Register Addresses are converted directly to AHB accesses. The LPC address is translated by the LPC Bus Interface to an AHB address inside the MEC1632 and the access becomes an access on the AHB bus. FIGURE 6-2: LPC LOGICAL DEVICE SPB Slave Interface AHB Master Interface Configuration AHB Bus SPB Bus LPC Bus Interface Control and Status LPC Bus Chip Boundary LPC Logical Device |
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