ÉlanSC310 Microcontroller Evaluation Board User’s Manual
2-23
1.
0
Power Measurement
The evaluation board allows for measurement of current flow in separate V
CC
planes for power budget analysis. The following table summarizes the connections
to the V
CC
jumpers. Be sure to turn off system power before removing JP1–
JP11. Replace JP1–JP11 before power-up or the system will not work.
A DOS application program has been provided to aid in placing the system in the
various power management modes for power measurement. ELANPMU.EXE is
on the AMD utilities diskette included with your kit. See “Elan PMU Evaluation
Utility” on page 3-4 for more information on ELANPMU.EXE.
Jumper
V
CC
Logic connected to V
CC
plane
JP1
V
CC
ÉlanSC310 core V
CC
only. Always 3.3 V.
JP2
V
CC3
ÉlanSC310 AV
CC
pin. Analog V
CC
. Always 3.3 V.
JP3
V
CC5
ÉlanSC310 V
CC5
pin. Diode clamp refs except V
CC
MEM
and AV
CC
source pins. Always 5 V except in full 3.3-
V designs. (Evaluation board limits to 5 V.)
JP4
V
CCMEM
ÉlanSC310 memory interface V
CC
. See the SW4 table
on page 2-19 for 3.3-V or 5-V setting. Restrictions do
apply. Also the diode clamp ref for pins sourced by the
V
CCMEM
pin.
JP5
V
CCSYS
ÉlanSC310 ISA bus V
CC
and other misc. pins. 5 V or
3.3 V. Refer to datasheet for details.
JP6
V
CCSYS2
ÉlanSC310 alternate pin V
CC
. 5 V or 3.3 V. Refer to
datasheet for details.
JP7
V
CCMEM53
System DRAM V
CC
plane.
JP10
V
CCKBOS
8042 V
CC
JP11
V
CCROM
BIOS and Application ROM V
CC
JP19
V
CC1
ÉlanSC310 V
CC1
pin 176. 5 V or 3.3 V.
evalbd.book : ch2 Page 23 Thursday, August 8, 1996 2:34 PM