Advantech PCL-818 Series Manual do Utilizador descarregar pdf (Página 55)

47 Appendix C

Table C-1 PCL-818HD/HG/L Register Format (Part 3)

C.3 A/D Data & Channels — BASE+00H~01H

Table C-2 Register for A/D Data & Channels

AD11 ~ AD0 Analog to digital data

AD0 the least significant bit (LSB) of the A/D data

AD11 the most significant bit (MSB)

C3 ~ C0 A/D channel number from which the data is derived

C0 the least significant bit (LSB) of the channels

C3 the most significant bit (MSB)

Base Addr.

+HEX

7 6543210

14H R N/A

W Clear FIFO Interrupt Request

17H R A/D data and channels from FIFO

AD3 AD2 AD1 AD0 C3 C2 C1 C0

WN/A

18H R A/D data and channels from FIFO

AD11 AD10 AD9 AD8 AD7 AD6 AD5 AD4

WN/A

19H R FIFO status

W FIFO clear

FF HF EF

Read A/D Data & Channels

Bit # 7 6 5432 10

BASE + 00H AD3 AD2 AD1 AD0 C3 C2 C1 C0

BASE + 01H AD11 AD10 AD9 AD8 AD7 AD6 AD5 AD4

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 73 74

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Advantech PCL-818 Series Manual do Utilizador Página 55