Functional Description
Table 26-7. SYSBOOT Configuration Pins
(continued)
SYSBOOT[15:14 SYSBOOT[13:12 SYSBOOT[11:10 SYSBOOT[9]
SYSBOOT[8]
SYSBOOT[7:6] SYSBOOT[5]
SYSBOOT[4:0]
Boot Sequence
]
]
]
00b
Don't care for
Don't care for
Don't care for
10110b
SPI0
MMC0
UART0
EMAC1
00b = 19.2MHz
00b = MII
0 = CLKOUT1
(all other values
ROM code
ROM code
ROM code
disabled
01b = 24MHz
01b = RMII
reserved)
1 = CLKOUT1
10b = 25MHz
10b =
enabled
Reserved
11b = 26MHz
11b = RGMII
w/o internal
delay
00b
Don't care for
Don't care for
Don't care for
Don't care for
10111b
MMC0
SPI0
UART0
USB0
00b = 19.2MHz
0 = CLKOUT1
(all other values
ROM code
ROM code
ROM code
ROM code
disabled
01b = 24MHz
reserved)
1 = CLKOUT1
10b = 25MHz
enabled
11b = 26MHz
00b
Don't care for
Don't care for
Don't care for
Don't care for
11000b
SPI0
MMC0
USB0
UART0
00b = 19.2MHz
0 = CLKOUT1
(all other values
ROM code
ROM code
ROM code
ROM code
disabled
01b = 24MHz
reserved)
1 = CLKOUT1
10b = 25MHz
enabled
11b = 26MHz
00b
Don't care for
Don't care for
Don't care for
11001b
SPI0
MMC0
EMAC1
UART0
00b = 19.2MHz
00b = MII
0 = CLKOUT1
(all other values
ROM code
ROM code
ROM code
disabled
01b = 24MHz
01b = RMII
reserved)
1 = CLKOUT1
10b = 25MHz
10b =
enabled
Reserved
11b = 26MHz
11b = RGMII
w/o internal
delay
00b
Don't care for
Don't care for
11010b
XIP
UART0
SPI0
MMC0
00b = 19.2MHz
For XIP boot:
0 = 8-bit device
0 = CLKOUT1
(all other values
ROM code
ROM code
(MUX2)
disabled
01b = 24MHz
00b = non-muxed
1 = 16-bit
reserved)
device
device
1 = CLKOUT1
10b = 25MHz
enabled
10b = muxed
11b = 26MHz
device
x1b = reserved
00b
Don't care for
Don't care for
11011b
XIP w/
UART0
SPI0
MMC0
00b = 19.2MHz
For XIP boot:
0 = 8-bit device
0 = CLKOUT1
(all other values
ROM code
ROM code
WAIT
disabled
01b = 24MHz
00b = non-muxed
1 = 16-bit
reserved)
(MUX2)
device
device
1 = CLKOUT1
10b = 25MHz
enabled
10b = muxed
11b = 26MHz
device
x1b = reserved
00b
Don't care for
Don't care for
Don't care for
Don't care for
11100b
MMC1
MMC0
UART0
USB0
00b = 19.2MHz
0 = CLKOUT1
(all other values
ROM code
ROM code
ROM code
ROM code
disabled
01b = 24MHz
reserved)
1 = CLKOUT1
10b = 25MHz
enabled
11b = 26MHz
4110Initialization
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated