66AK2E05, 66AK2E02
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SPRS865D –NOVEMBER 2012–REVISED MARCH 2015
Table 9-8. EMIF Boot Device Configuration Field Descriptions
Bit Field Description
16 Boot Devices Boot Devices[16] used conjunction with Boot Devices[4] and Boot Devices [Used in conjunction with bits
3-1]
• 0 = EMIF boot mode
• 1 = Other boot modes
15-14 Base Addr Base address (0-3) used to calculate the branch address. Branch address is the chip select plus
Base Address *16MB
13 Wait Extended Wait
• 0 = Extended Wait disabled
• 1 = Extended Wait enabled
12 Width EMIF Width
• 0 = 8-bit EMIF Width
• 1 = 16-bit EMIF Width
11 Reserved Reserved
10-9 Chip Sel Chip Sel that specifies the chip select region, EMIF16 CS2-EMIF16 CS5.
• 00 = EMIF16 CS2(EMIFCE0)
• 01 = EMIF16 CS3 (EMIFCE1)
• 10 = EMIF16 CS4 (EMIFCE2)
• 11 = EMIF16 CS5 (EMIFCE3)
8 Boot Master This pin must be pulled down to GND
7-5 SYS PLL Setting The PLL default settings are determined by the [7:5] bits. This will set the PLL to the maximum clock
setting for the device. Table 9-25 shows settings for various input clock frequencies.
4-1 Boot Devices Boot Devices[4] used conjunction with Boot Devices[16]
• 0011 = EMIF boot mode
• 1XXX = Other boot modes
0 Lendian Endianess
• 0 = Big endian
• 1 = Little endian
9.1.2.2.5 NAND Boot Device Configuration
Figure 9-7. NAND Boot Device Configuration Fields
DEVSTAT Boot Mode Pins ROM Mapping
16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 First Block Clear X Chip Sel Boot Master Sys PLL Cfg Min 011 Lendian
Table 9-9. NAND Boot Device Configuration Field Descriptions
Bit Field Description
16 Boot Devices Boot Devices[16] used conjunction with Boot Devices [3-1]
• 0 = Other boot modes
• 1 = NAND boot mode
15-13 First Block First Block. This value is used to calculate the first block read. The first block read is the first block value
*16.
12 Clear ClearNAND
• 0 = Device is not a ClearNAND (default)
• 1 = Device is a ClearNAND
11-9 Chip Sel Chip Sel that specifies the chip select region, EMIF16 CS2-EMIF16 CS5.
• 00 = EMIF16 CS2(EMIFCE0)
• 01 = EMIF16 CS3 (EMIFCE1)
• 10 = EMIF16 CS4 (EMIFCE2)
• 11 = EMIF16 CS5 (EMIFCE3)
8 Boot Master This pin must be pulled down to GND
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