NS32FV100 Datasheet, PDF (28/96 Pages) Texas Instruments – NS32FX100 NS32FV100 NS32FX200 System Controller

2 0 Architecture (Continued)
Printer Interrupt Generator
The Interrupt Control Unit dedicates one interrupt either to
the Strobes-Done pulse or to DMA channel 1 The Printer
Interrupt Source (PIS) bit of the TPHC register selects which
of the interrupt pulses is routed to the Interrupt Control Unit
Temperature Sensing Circuit
A 6-bit A D Converter (ADC) is implemented by a 6-bit
Pulse Width Modulation (PWM) based D A convertor and
an analog comparator The control loop of the ADC is exe-
cuted under software control The total time for both PWM
based D A conversion and for comparator settling is less
than 2 ms The DAC must be initialized to 011111 at least
10 ms prior to the first reading of the comparator output
Obsolete ^{FIGURE2-14 TemperatureADC}
TL EE 11331 – 19
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