Measurement-computing CIO-DAS800 Manuale Utente Scaricare il pdf (Pagina 16)

Table 4-4. Coding for Base + 02 Register Functions

ID Register Not defined11

Status Register #2 Scan Limits Reg01

Status Register #2 Conversion Control10

Status Register #2 Control Reg # 100

Read Function Write FunctionCS0CS1

Control Register Selected

Table 4-5. Special Programming Instructions

External Interrupt is rising edge, External Pacer is falling edge

External Interrupt and External (Pacer) Clock are mutually exclusiveINT/XCLK

Bit

"Gate", Requires DTEN=1, GTEN=0LevelGating

Requires DTEN=1, GTEN=0EdgeTriggering

CT/1 decrements each time CT/2 counts to zero; AD converts when CT/1 counts

to zero

Cascade

CT/2 divides the 1MHz timebase; AD converts when CT/2 counts to zeroNormalPacing

Operating

modes

Not appplicable.Gain/Range

ID 1/0: 0/0= (DAS800], 0/1= reserved, 1/0= N/A, 1/1= N/A)

Only the 1st two bits are needed for software, the upper six are for compatibility with KMB

software

Select Start and End Channel before setting EACS

Ending channel (n) can be lower than starting channel (m) : m,...,6,7,0,1,...,n,m...Scan Limits

Set HCEN last, by itself (ie write 80h) , set the other bits first

HCEN is used as a master enable for AD PacingConv/Control

Special Programming instructions

1 2 ... 11 12 13 14 15 16 17 18 19 20

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Measurement-computing CIO-DAS800 Manuale Utente Pagina 16