MCF5282CVM66 Datasheet, PDF (220/766 Pages) Freescale Semiconductor, Inc – MCF5282 and MCF5216 ColdFire® Microcontroller User’s Manual

Chip Select Module
12.4.1 Chip Select Module Registers
The chip select module is programmed through the chip select address registers (CSAR0–CSAR6), chip
select mask registers (CSMR0–CSMR6), and the chip select control registers (CSCR0–CSCR6).
12.4.1.1 Chip Select Address Registers (CSAR0–CSAR6)
The CSARs, Figure 12-2, specify the chip select base addresses.
15
0
Field
BA
Reset
Uninitialized
R/W
R/W
Address
0x080 (CSAR0); 0x08C (CSAR1); 0x098 (CSAR2); 0x0A4 (CSAR3);
0x0B0 (CSAR4); 0x0BC (CSAR5); 0x0C8 (CSAR6)
Figure 12-2. Chip Select Address Registers (CSARn)
Table 12-6 describes CSAR[BA].
Table 12-6. CSARn Field Description
Bits Name
Description
15–0
BA Base address. Defines the base address for memory dedicated to chip select CS[6:0]. BA is compared
to bits 31–16 on the internal address bus to determine if chip select memory is being accessed.
12.4.1.2 Chip Select Mask Registers (CSMR0–CSMR6)
The CSMRs, Figure 12-3, are used to specify the address mask and allowable access types for the
respective chip selects.
.
31
16 15
98 76543210
Field
BAM
—
WP — AM C/I SC SD UC UD V
Reset
Unitialized
0
R/W
R/W
Addr
0x084 (CSMR0); 0x090 (CSMR1); 0x09C (CSMR2); 0x0A8 (CSMR3);
0x0B4 (CSMR4); 0x0C0 (CSMR5); 0x0CC (CSMR6)
Figure 12-3. Chip Select Mask Registers (CSMRn)
Table 12-7 describes CSMR fields.
12-6
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Freescale Semiconductor