Prom Card; Latch, Remote Control Connector; Lines To Power Amplifiers - Agilent Technologies 8453 Operator's Manual

10 Electronics of the Temperature Control Accessory
Microcontroller and Peripherals
The HPC46003 microcontroller supports the following hardware via
address/data and address bus.

PROM Card

The optional
provides easy upgrade possibility for firmware. It is automatically selected
when plugged in (the normal

Latch, Remote Control Connector

The ready line, error line and out-trigger (OUTTRIG) line (presently not used)
lead to the remote/control connector. The in-trigger (INTRIG) signal and the
RS-232 lines from the remote/control connector are connected directly to the
microcontroller and are presently not used.

Lines to Power Amplifiers

The power amplifier direction lines PADIR11 and PADIR12 are used to reverse
the direction of current through the Peltier element of channel 1. (PADIR01
and PADIR02 are used for channel 0.)
The switch enable lines SWE0/1 and switch control lines SWC0/1 are directly
controlled from the microcontroller. SWE1 is an enabled line for the power
amplifiers of channel 1 (SWE0 is used for channel 0).
128 Temperature Control Accessory for Agilent 8453 UV-visible Spectrophotometer Operator's Manual
Display
(32 Kbyte)
PROM
card (optional)
PROM
(64Kbyte)
RAM
GPIB driver
Latch
card can be plugged in from the rear of the instrument. It
PROM
is disabled).
PROM