MAX1454_11 Datasheet, PDF (18/25 Pages) Maxim Integrated Products – Precision Sensor Signal Conditioner with Overvoltage Protection

MAX1454
Precision Sensor Signal Conditioner
with Overvoltage Protection
Table 15. CRIL Command Codes (CRIL[3:0])
CRIL[3:0]
0000
0001
0010
0011
0100
0101
NAME
LdlCR
EEPW
ERASE
RdICR
RdEEP
RdIRS
DESCRIPTION
Load internal calibration register at address given in ICRA with data from DHR[15:0].
Flash memory write of 8 data bits from DHR[7:0] to address location pointed by IEEA[10:0].
Erase all flash memory (all bytes equal FFhex).
Read internal calibration register as pointed to by ICRA and load data into DHR[15:0].
Read internal flash memory location pointed by IEEA[10:0] and load data into DHR[7:0].
Read interface register set pointer IRSP[3:0] and output the multiplexed digital signal onto
OUT/DIO (see Table 17).
0110
0111
1000
1001 to 1110
1111
RdAlg
PageErase
SwToANA
Reserved
RELEARN
Output the multiplexed analog signal (i.e., test mux output) onto OUT/DIO. The duration (in
byte times) that the signal is asserted onto the pin is specified by ATIM[3:0] (Table 18) and
the analog location is specified by ALOC[4:0] (Table 19).
Erases the page of the flash memory as pointed by IEEA[10:9]. There are 512 bytes per page.
Switch to fixed analog mode.
Reserved.
Relearn the baud rate.
Table 16. ICRA Decoding (ICRA[3:0])
IRCA[3:0]
0000
0001
0010
0011
0100
0101
0110
0111 to 1111
NAME
CONFIG1
CONFIG2
ODAC
OTCDAC
FSODAC
FSOTCDAC
PWRUPCFG
Reserved
DESCRIPTION
Configuration Register 1
Configuration Register 2
Offset DAC
Offset Temperature Coefficient DAC
Full-Span Output DAC
Full-Span Output Temperature Coefficient DAC
Power-Up Configuration
Reserved (do not write to these locations)
Table 17. IRSP Decoding (IRSP[3:0])
IRSP[3:0]
0000
0001
0010
0011
0100
RETURNED VALUE
DHR[7:0]
DHR[15:8]
0bin, IEEA[10:8], ICRA[3:0] concatenated
CRIL[3:0], IRSP[3:0] concatenated
0000bin, ATIM[3:0] concatenated
0101
IEEA[7:0] flash memory address byte
IRSP[3:0]
0110
0111
1000
1001
1010 to 1110
1111
RETURNED VALUE
IEED[7:0] flash memory data byte
TEMPINDEX[7:0]
BitClock[7:0]
00bin, BURSTEN, ALOC[4:0] concatenated
Reserved
11001010 (CAhex) (this can be used to test
communication)
���������������������������������������������������������������� Maxim Integrated Products   18