User`s guide

Each of the serial adapters listed above may also be ordered without firmware.
The hardware is identical, but no firmware is shipped with the device. The user
must provide firmware using the functions described below.
Product
PSG
Description
Firmware
Status
Original Programmable Serial
None
Replaced by PSG/2
Gateway; Hardware is identical
to SLTA
PSGM
PSG/3
Second generation PSG;
Hardware identical to SLTA/2
Third generation PSG;
Hardware identical to SLTA-10
None
Replaced by PSG/3
None Current Product
Depending on the hardware you intend to use, one of the following #defines
must be defined in your source ( . NC) just before the PSG . H file is included.
#define SLTASIP
When targeting PSG-10
#define SLTAZ
When targeting PSG/2
#define PSG20
When targeting PSG/3 or PSG-20
Programmable Serial Gateway Hardware Resources
The SLTA-10 hardware includes a UART attached to the I/O pins of a Neuron
Chip, memory, oscillator, reset circuitry, and a twisted pair transceiver, as shown
in figure 13.1.
-----------------__.
EIA-232
I
I
I
; UART -
I
I
I
LONWORKS
Network
i
I
Trans- I
ceiver
I
----------------___
Figure 13.1 SLTA-10 Block Diagram
SLTA-10 Adapter User’s Guide
13-3