MAX11311 Datasheet, PDF (40/51 Pages) Maxim Integrated Products – PIXI, 12-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO

MAX11311
PIXI, 12-Port Programmable Mixed-Signal I/O with
12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
Port Configuration Registers (Read/Write)
BIT
FIELD NAME
DESCRIPTION
11:0 FUNCPRM_0[11:0] FUNCPRM_i[4:0]: ASSOCIATED PORT
FUNCPRM_1[11:0] • Defines the port to use in conjunction with a port configured in mode 4, 8, or 11.
FUNCPRM_2[11:0] • The associated port addresses are :
FUNCPRM_3[11:0]
FUNCPRM_4[11:0]
ASSOCIATED PORT NAME
CORRESPONDING ADDRESS
FUNCPRM_5[11:0]
P0
FUNCPRM_6[11:0]
FUNCPRM_7[11:0]
P1
FUNCPRM_8[11:0]
P2
0x02
0x03
0x04
FUNCPRM_9[11:0]
P3
FUNCPRM_10[11:0]
FUNCPRM_11[11:0]
P4
P5
0x05
0x06
0x07
P6
0x0B
P7
0x0C
P8
0x0D
P9
0x0E
P10
0x0F
P11
0x10
FUNCPRM_i[7:5]: # OF SAMPLES (for ADC-related functional modes only)
VOLTAGE RANGE CODES
ADC VOLTAGE RANGE (V) DAC VOLTAGE RANGE (V)
000
No Range Selected
No Range Selected
001
0 to +10
0 to +10
010
-5 to +5
-5 to +5
011
-10 to 0
-10 to 0
100
0 to +2.5
-5 to +5
101
Reserved
Reserved
110
0 to +2.5
0 to +10
111
Reserved
Reserved
FUNCPRM_i[11]: AVR (for mode 6 only)
• ADC voltage reference selection
• 0: ADC internal voltage reference
• 1: ADC DAC voltage reference determined by DACREF
FUNCPRM_i[11]: INV (for GPI-controlled functional modes only)
• Asserted to invert the data received by the GPI-configured port.
• 0: Data received from GPI-configured port is not inverted
• 1: Data received from GPI-configured port is inverted
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