EVB-EMC2101 SMSC, EVB-EMC2101 Datasheet - Page 10

• Manufacturer Part Number: EVB-EMC2101
• Description: MCU, MPU & DSP Development Tools Evaluation Board
• Manufacturer: SMSC

Specifications of EVB-EMC2101

• Processor To Be Evaluated: EMC2101
• Interface Type: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Revision 1.5 (12-13-06)
3.9.3
JUMPER
Off-board diode (CPU,
Off-board diode (CPU,
On-board diode (Q12)
On-board diode (Q11)
JP13
JP10
JP7
CONFIGURATION
GPU, etc.)
GPU, etc.)
Remote Diode
The remote diode on board the EMC2101 EVB has a heater and an optional in-line series resistance
adjustment. Checking the REC feature of the EMC2101 is accomplished by removing the jumper on
JP7. This adds 100 ohms of series resistance to the DN line of the diode connection. To return to 0
ohm series resistance, replace the jumper on JP7.
To heat the diode, place a jumper on JP10. To return to ambient conditions, remove JP10. These
remote diode options are summarized in
This EVB also allows for an off-board diode to be tested (see
both jumpers on JP8. Then connect Pin 1 to the ‘remote+’ terminal of the remote diode and Pin 3 to
the ‘remote-‘ terminal of the remote diode. Make sure a common ground exists between the remote
diode (GPU, etc.) and the EMC2101 EVB. Also ensure that the remote diode is properly biased
according to the diode manufacture.
A unique feature of the EMC2101-R device is the ability to start in one of several different
configurations based on the pull up resistor on the ALERT output. The EVB allows the user to quickly
evaluate each of the 4 configurations by adjusting JP11 as shown in
load via EEPROM, ensure that the Autorefresh Registers is not selected until the loading is complete
(less than 1 sec).
HEATER
NAME
REC
REC
Ambient temp on remote diode
JUMPER
JP12
JP12
JP9
JP9
DN line (diode remote -)
DN line (diode remote -)
Q12 - 100 ohms in
Q11 - 100 ohms in
Table 3.5 Remote Diode Configurations
Table 3.4 Remote Diode Settings
OPEN
(Q12)
remote + / DP
remote + / DP
PIN 1
Table 3.4
short / DP
short / DP
10
below.
PIN 2
open
open
1.0W resistive heater on remote diode (Q12)
Table
DN line (diode remote -)
DN line (diode remote -)
remote - / DN
remote - / DN
Q12 - 0 ohms in
Q11 - 0 ohms in
Table
3.5). This is done by removing
PIN 3
SHORT
3.6. When using the auto
EVB-EMC2101 User Manual
short / DN
short / DN
SMSC EMC2101
PIN 4
open
open