Phytec phyCORE-i.MX31, Hardware Manual

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phyCOREi.MX31
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©
PHYTEC Messtechnik GmbH 2007 L-700e_0
The jumpers (J = solder jumper) have the following functions:
Table 2: Jumper settings
D
EFAULT
S
ETTING
A
LTERNATIVE
S
ETTING
S
EE
S
ECTION
J1
2 + 3 Selects x8 organization of
Ethernet EEPROM U4 1 + 2 Selects x16 organization of
Ethernet EEPROM U4
7.5
J2
2 + 3 Thermal Sensor U16 address
bit A1 connected to VCC 1 + 2 Thermal Sensor U16
address bit A1 connected to
GND
J3
2 + 3 Thermal Sensor U16 address
bit A2 connected to GND 1 + 2 Thermal Sensor U16
address bit A2 connected to
VCC
N/A
J4
2 + 3 EEPROM U17 address bit A0
connected to GND 1 + 2 EEPROM U17 address bit
A0 connected to VCC
J5
2 + 3 EEPROM U17 address bit A1
connected to VCC 1 + 2 EEPROM U17 address bit
A1 connected to GND
J6
2 + 3 EEPROM U17 address bit A2
connected to GND 1 + 2 EEPROM U17 address bit
A2 connected to VCC
J8
closed EEPROM U17 is not write
protected closed EEPROM U17 is write
protected
7.5
J7
open RAM-Bank input is high.
(only DDR-RAM bank 0 is
populated) closed RAM-Bank input is low.
(DDR-RAM bank’s 0 & 1 are
populated)
J9
open WDRESET output from i.MX31
is not connected to WDI input
of MC13783; watchdog is
disabled closed WDRESET output from
i.MX31 is connected to WDI
input of MC13783; watchdog
is enabled
N/A
J10
open Power up Mode select
(PUMS1) is floating closed Power up Mode select
(PUMS1) is connected to
VATLAS (high)
J11
open Power up Mode select
(PUMS1) is floating closed Power up Mode select
(PUMS1) is connected to
GND (low)
J12
open Power up Mode select
(PUMS2) is floating closed Power up Mode select
(PUMS2) is connected to
VATLAS (high)
J13
closed Power up Mode select
(PUMS2) is connected to GND
(low) open Power up Mode select
(PUMS2) is floating
J14
open Power up Mode select
(PUMS3) is floating closed Power up Mode select
(PUMS3) is connected to
VATLAS (high)
J15
open Power up Mode select
(PUMS3) is floating closed Power up Mode select
(PUMS3) is connected to
GND (low)
4