TL16PNP200 Datasheet, PDF (14/23 Pages) Texas Instruments – STANDALONE PLUG-AND-PLAY (PnP) CONTROLLER

TL16PNP200
STANDALONE PLUGĆANDĆPLAY (PnP) CONTROLLER
SLLS229A − NOVEMBER 1995 − REVISED APRIL 1996
APPLICATION INFORMATION
on-board EEPROM programming
This section describes a simple approach to programming the resource EEPROM in an expansion board that
uses the TL16PNP200. This approach involves utilizing a readily available standard EEPROM programmer and
a ribbon cable in addition to minor additions to the expansion board.
A connector is needed on the expansion board to provide access to the EEPROM signals as shown in Figure
4. Two jumper wires are used to isolate the EEPROM during programming. Power to the board must be removed
before programming. To isolate the V_CC of the EEPROM from the board V_CC, Jumper 2 should be disconnected.
This disables the PnP controller and prevents it from driving the EEPROM inputs. Jumper 1 should also be taken
off during programming to isolate the D input and Q output. The PnP controller uses a single pin for the EEPROM
data input and output.
The ribbon cable plugs into the on-board connector on one end, and the other end has a DIP connector that
plugs into the EEPROM programmer.
Programming the EEPROM is achieved by connecting the unpowered board to the programmer using the
ribbon cable, removing the jumper wires, and then using the software supplied with the programmer. After
programming is complete, the jumper wires are reattached and the board is now ready for testing.
hardware required for programming an expansion board EEPROM
The hardware required for programming an expansion board EEPROM is listed in the following bulleted list and
shown in Figure 4.
D EEPROM programmer
D Ribbon cable with connectors
D On-board connector and two jumper wires
TL16PNP200
SCLK
SCS
SIO
R1 Jumper 1
EEPROM
C
VCC
S
DU
D
ORG
Q
VSS
Jumper 2
VCC
Connector
Figure 4. Programming an Expansion Board EEPROM
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