
UG_1217F_040
73S1217F Evaluation Board User Guide
Rev. 2.4
13
4 Evaluation Board Hardware Description
4.1 Jumpers, Switches and Modules
describes the 73S1217F Evaluation Board jumpers, switches and modules. The Item # in Table 2
references
Table 2: Evaluation Board Jumper, Switch and Module Description
Item
#
Schematic
and
Silkscreen
Reference
Default
setting
Name
Use
1
J2, J3, J5
No
Connect
Banana plugs for
external regulated
power supply
Must be used to connect an external power
supply. These inputs are intended to allow
control of the input supply voltage of the board.
JP5 must be in position “EXT VPC” when using
VPC and JP8 must be in position “EXT” when
using the VBAT power supply inputs.
The evaluation board is sensitive to the polarity:
One red plug is +2.7/6.5 V for external VPC and the other red plug is +4.0/6.5 V for VBAT. The
black plug is ground.
2
JP2
VP
73S8010R VPC select Selects VPC power supply source for the
73S8010R device between VP on the
73S1217F and +5 V from JP1 pin 2.
3
J11
No
Connect
In-Circuit Emulator
connector
This connector must be used when using an
external
In-Circuit Emulator (SIGNUM 8052 ADM51
ICE). Refer to the electrical schematic for pin
assignment.
4
PJ1
No
Connect
DC jack
Plug to connect an external DC block. Must be
used in conjunction with appropriate settings of
S1, JP1 and JP6 (see details above).
Power supply features are:
Voltage: 2.7 V min / 6.5 V Max
Current: 400 mA
5
J6
Connect
USB connector
Standard USB socket. Requires a standard
USB 1.1 or 2.0 device cable to connect to a
computer.
6
JP23
Inserted
USB interrupt jumper
Jumper allows the VBUS (after level conversion)
to connect to USR7 (configured for interrupt).
Remove this jumper if not needed and USR7
can be used for another purpose.
7
JP6
Shutdown RS-232 Xcvr enable
jumper
Selects between VDD (always enabled) and a
test point (with pull down) to allow the RS232
transceiver chip to be shut down.
8
P1
No
Connect
DB9 RS232 female
socket
This socket allows connection of an RS232
cable to a computer. Use a crossed wired
(RX/TX) cable. The evaluation board has an
on-board level shifter (U7) to allow direct
connection to a computer.
Connection to an RS232 link is required when
using the pre-downloaded USB CCID
application.