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HI-8435PCI Datasheet(PDF) 6 Page - Holt Integrated Circuits |
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HI-8435PCI Datasheet(HTML) 6 Page - Holt Integrated Circuits |
6 / 21 page REGISTER DESCRIPTIONS HOLT INTEGRATED CIRCUITS 6 HI-8435 TABLE 3. 7-2 - 1 SRST 0 TEST Bit Name R/W Default Description R/W 0 Not Used. R/W 0 Software Reset - Setting this bit to “1” holds all other registers and the TEST bit to their reset values. SRST bit must be written back to “0” to release this reset . R/W 0 Setting this bit to “1” puts the HI-8435 in the self test mode. Input to sensors are internally set according to the value of the TEST MODE DATA register 76543210 MSB LSB CONTROL REGISTER : CTRL Read: SPI Op-code 0x82 Write: SPI Op-code 0x02 Reset Value 00 [Opcode, DB0] X X XXX X TABLE 4. 7-4 - R/W 0 3-0 BANK3-0 Bit Name R/W Default Description Not Used. R/W 0 Program Sensor type for SENSE Inputs. Bank 0 programs inputs SENSE<7:0> Bank 1 programs inputs SENSE<15:8> Bank 2 programs inputs SENSE<23:16> Bank 3 programs inputs SENSE<31:24> Setting a bit to “0” programs the 8 inputs in the bank to be GND/Open sensors. Setting a bit to “1” programs the 8 inputs in the bank to be Supply/Open sensors. TABLE 5. 76543210 MSB LSB PROGRAM SENSE BANKS REGISTER: PSEN<3:0> Read: SPI Op-code 0x84 Write: SPI Op-code 0x04 Reset Value 00 [Opcode, DB0] XXXX DATA BYTE 0 DATA BYTE 0 ODD1 = 1 Odd inputs are set high ODD0 = 1 Odd inputs are set low ALL1 = 1 All inputs are set high ALL0 = 1 All inputs are set low Bit Name R/W Default Description 7-4 - R/W 0 Not Used. 3-0 TMDATA3-0 R/W 0 These 4 bits program the internal inputs to the sense comparators when in the test mode. Note: Only one mode can be selected. If more than one bit is high the inputs will all be set low. 76543210 MSB TEST MODE DATA REGISTER : TMDATA Read: SPI Op-code 0x9E Write: SPI Op-code 0x1E Reset Value 00 [Opcode, DB0] X X X DATA BYTE 0 X |
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