mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 410

• Manufacturer Part Number: mc9s12xf512
• Description: S12x Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11 Memory Mapping Control (S12XMMCV4) SUPPORTING FLEXRAY
Table 11-6
resources (internal) parameters.
410
CS3E[1:0]
CS2E[1:0]
CS1E[1:0]
CS0E[1:0]
Field
7–6
5–4
3–2
1–0
1. External RPAGE accesses in (NX, EX)
2. When ROMHM is set (see ROMHM in
3. When the internal NVM is enabled (see ROMON in
4. External PPAGE accesses in (NX, EX)
chip memory block.
the CS0 is not asserted in the space occupied by this on-chip memory block.
shows the address boundaries of each chip select and the relationship with the implemented
Chip Select 3 Enables — These bits enable the external chip select CS3 output which is asserted during
accesses to specific external addresses. The associated global address range is shown in
Figure
Chip select 3 is only active if enabled in Normal Expanded mode, Emulation Expanded mode.
The function disabled in all other operating modes.
00
01,10,11 Chip select 3 is enabled
Chip Select 2 Enables — These bits enable the external chip select CS2 output which is asserted during
accesses to specific external addresses. The associated global address range is shown in
Figure
Chip select 2 is only active if enabled in Normal Expanded mode, Emulation Expanded mode.
The function disabled in all other operating modes.
00
01,10,11 Chip select 2 is enabled
Chip Select 1 Enables — These bits enable the external chip select CS1 output which is asserted during
accesses to specific external addresses. The associated global address range is shown in
Figure
Chip select 1 is only active if enabled in Normal Expanded mode, Emulation Expanded mode.
The function disabled in all other operating modes.
00
01,10,11 Chip select 1 is enabled
Chip Select 0 Enables — These bits enable the external chip select CS0 output which is asserted during
accesses to specific external addresses. The associated global address range is shown in
Figure
Chip select 0 is only active if enabled in Normal Expanded mode, Emulation Expanded mode.
The function disabled in all other operating modes.
00
01,10,11 Chip select 0 is enabled
Chip Selects
CS2
CS0
CS3
CS1
11-17.
11-17.
11-17.
11-17.
Chip select 3 is disabled
Chip select 2 is disabled
Chip select 1 is disabled
Chip select 0 is disabled
(2)
(3)
Table 11-6. Global Chip Selects Memory Space
MC9S12XF - Family Reference Manual, Rev.1.19
Table 11-5. MMCCTL0 Field Descriptions
Bottom Address
0x00_0800
0x14_0000
0x20_0000
0x40_0000
Table
11-15) the CS2 is asserted in the space occupied by this on-
Section 11.3.2.5, “MMC Control Register
Description
0x7F_FFFF minus FLASHSIZE
0x0F_FFFF minus RAMSIZE
Top Address
0x1F_FFFF
0x3F_FFFF
Freescale Semiconductor
(MMCCTL1))
Table 11-6
Table 11-6
Table 11-6
Table 11-6
(1)
(4)
and
and
and
and