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SC312XDP512F0MPVR датащи(PDF) 658 Page - Freescale Semiconductor, Inc

номер детали SC312XDP512F0MPVR
подробное описание детали  HCS12X Microcontrollers
PDF  1348 Pages
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производитель  FREESCALE [Freescale Semiconductor, Inc]
домашняя страница  http://www.freescale.com
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SC312XDP512F0MPVR датащи(HTML) 658 Page - Freescale Semiconductor, Inc

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Chapter 18 Memory Mapping Control (S12XMMCV3)
MC9S12XDP512 Data Sheet, Rev. 2.21
658
Freescale Semiconductor
Table 18-5. MMCCTL0 Field Descriptions
Field
Description
3–0
CS[3:0]E
Chip Select Enables — Each of these bits enables one of the external chip selects CS3, CS2, CS1, and CS0
outputs which are asserted during accesses to specific external addresses. The associated global address
ranges are shown in Table 18-6 and Table 18-21 and Figure 18-21.
Chip selects are only active if enabled in normal expanded mode, Emulation expanded mode and special test
mode. The function disabled in all other operating modes.
0 Chip select is disabled
1 Chip select is enabled
Table 18-6. Chip Select Signals
Global Address Range
Asserted Signal
0x00_0800–0x0F_FFFF
CS3
0x10_0000–0x1F_FFFF
CS2
0x20_0000–0x3F_FFFF
CS1
0x40_0000–0x7F_FFFF
CS01
1 When the internal NVM is enabled (see ROMON in Section 18.3.2.5, “MMC Control
Register (MMCCTL1)) the CS0 is not asserted in the space occupied by this on-chip
memory block.



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