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phyCOREi.MX31
28
©
PHYTEC Messtechnik GmbH 2007 L-700e_0
5
Real Time Clock U18 / SRAM U19 Battery
The connection of a battery is not essential to the functioning of the phyCORE-i.MX31. The battery,
interfaced as voltage supply signal x_VBAT through X1 pin 6C on the phyCORE-connector, provides
power to the I²C Real Time Clock U18 (RTC8564JE) and the low power SRAM U19. This provides a
means of time/memory keeping in the absence of power at the VCC_3V3 pins while drawing minimal
power from the battery.
The x_VBAT (2.0V < x_VBAT < VCC_3V3) input operating limits are listed in Table 4 below.
Table 4:
x_VBAT operating limits
M
IN
T
YP
M
AX
U
NITS
x_VBAT 2.0 3.1V 3.3V
V
Caution:
Operation with x_VBAT greater than VCC_3V3 could cause unintentional discharge of the battery.
If you choose not to use a battery with the phyCORE-i.MX31 then x_VBAT should be connected to
VCC_3V3 external to the phyCORE-i.MX31.
See section 11 Technical Specifications for battery power consumption.
Содержание phyCORE-i.MX31
Страница 1: ...phyCORE i MX31 HARDWARE MANUAL EDITION JULY 2007 A product of a PHYTEC Technology Holding company...
Страница 9: ...Contents PHYTEC Messtechnik GmbH 2007 L 700e_0...
Страница 10: ......
Страница 32: ...phyCOREi MX31 J20 J18 J19 J16 J17 Figure 6 Jumper locations top view 22 PHYTEC Messtechnik GmbH 2007 L 700e_0...
Страница 55: ...Debug Interface X201 PHYTEC Messtechnik GmbH 2007 L 700e_0 45...
Страница 57: ...Debug Interface X201 PHYTEC Messtechnik GmbH 2007 L 700e_0 47...
Страница 86: ...phyCOREi MX31 On NOR Flash On NAND Flash 76 PHYTEC Messtechnik GmbH 2007 L 700e_0...
Страница 90: ...phyCOREi MX31 80 PHYTEC Messtechnik GmbH 2007 L 700e_0 JP17 more info JP604 more info...
Страница 109: ...The phyCORE i MX on the Development Board PHYTEC Messtechnik GmbH 2007 L 700e_0 99 15A x_TRIGGER Trigger 15B GND Ground...
Страница 128: ...phyCOREi MX31 118 PHYTEC Messtechnik GmbH 2007 L 700e_0 13 6 1 LCD 004 Physical Dimensions TBD...
Страница 135: ...Published by PHYTEC Messtechnik GmbH 2007 Ordering No L 700e_0 Printed in Germany...