Adlink ACL-8112 Series Manual de usuario descargar pdf (Pagina 40)

32 • Registers

4.1 I/O Port Address

The ACL-8112 requires 16 consecutive addresses in the PC I/O address

space. Table 4.1 shows the I/O address of each register with respect to the

base address. The function of each register is also listed.

I/O Address Read Write

Base + 0 Counter 0 Counter 0

Base + 1 Counter 1 Counter 1

Base + 2 Counter 2 Counter 2

Base + 3 Not Used 8254 Counter Control

Base + 4 A/D low byte CH1 D/A low byte

Base + 5 A/D high byte CH1 D/A high byte

Base + 6 DI low byte CH2 D/A low byte

Base + 7 DI high byte CH2 D/A high byte

Base + 8 Not Used Clear Interrupt Request

Base + 9 Not Used A/D Range Control

Base + 10 Not Used Channel MUX

Base + 11 Not Used Mode Control

Base + 12 Not Used Software A/D trigger

Base + 13 Not Used DO low byte

Base + 14 Not Used DO high byte

Base + 15 Not Used Not Used

Table 4.1 I/O Address

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 91 92

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Adlink ACL-8112 Series Manual de usuario Pagina 40