Part II: PCM-959/phyCORE-OMAP44xx Carrier Board
phyCORE-OMAP44xx
138
©
PHYTEC Messtechnik GmbH
2012
L-760e_1
By default the boot mode DIP-switches S1 and S2 are off, configuring the phyCORE-OMAP44xx for booting from
1st: NAND, 2nd: USB, 3rd: UART, 4th: MMC1.
Please refer to chapter
for more information about the possible configurations.
X_BOOT[0] = LOW
(sys_boot [0] = LOW)
X_BOOT[0] = HIGH
(sys_boot [0] = HIGH)
value according to the
configuration circuitry
(pull-up or pull-down
resistors) on the
phyCORE-OMAP44xx
S1_1
(connecting to GND)
On
Off
Off
S1_2
(connecting to VCC_1V8)
Off
On
Off
Table 66:
Possible Configurations of the DIP-Switches
1
1.
Default settings are in
bold blue
text
phyCORE Configuration Pin
OMAP44xx Configuration Pin
S1_1 /
S1_2
X_BOOT0 (X1C57)
sys_boot[0]
S1_3 /
S1_4
X_BOOT1 (X1D57)
sys_boot[1]
S2_1 /
S2_2
X_BOOT2 (X1C58)
sys_boot[2]
S2_3 /
S2_4
X_BOOT3 (X1D58)
sys_boot[3]
S2_5 /
S2_6
X_BOOT4 (X1C59)
sys_boot[4]
S2_7 /
S2_8
X_BOOT5 (X1D60)
sys_boot[5]
Table 67:
Connections between DIP-Switches S1 / S2 and the Configuration Pins on the phyCORE-OMAP44xx