MAX11301 Datasheet, PDF (38/55 Pages) Maxim Integrated Products – Programmable Sample Averaging Per ADC Port

MAX11301
PIXI, 20-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
Internal Temperature Data Register (Read)
BIT
FIELD NAME
DESCRIPTION
11:0 TMPINTDAT[11:0] Internal temperature measurement data
• Temperature measurement produced by the internal temperature sensor.
• The data sample is represented in two’s complement, and one LSB represents 0.125°C.
1st External Temperature Data Register (Read)
BIT
FIELD NAME
DESCRIPTION
11:0 TMPEXT1DAT[11:0] 1st external temperature measurement data
• Temperature measurement produced by the first external temperature sensor.
• The data sample is represented in two’s complement, and one LSB represents 0.125°C.
2nd External Temperature Data Register (Read)
BIT
FIELD NAME
DESCRIPTION
11:0 TMPEXT2DAT[11:0] 2nd external temperature measurement data
• Temperature measurement produced by the second external temperature sensor.
• The data sample is represented in two’s complement, and one LSB represents 0.125°C.
GPI Status Registers (Read)
BIT
FIELD NAME
DESCRIPTION
15:0
GPIST[15:0]
Status of GPI event detection for ports 0 to 19
3:0
GPIST[19:16]
• Asserted when an event is detected on a GPI-configured port. The type of event to detect is
set by the corresponding GPI IRQ register.
• Once a GPIDT interrupt is generated, the host can identify which GPI port(s) caused the
interrupt by reading GPIST[15:0] and GPIST[19:16] registers.
• GPIST content is not affected by any related interrupt mask. Activity on GPI-configured ports
is recorded by GPIST regardless of the mask interrupt register setting.
• Cleared after the interrupt register is read, and after both GPIST[15:0] and GPIST[19:16]
registers are read, subsequently.
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