ADLINK Technology ACL -6128, Руководство пользователя

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Low-Level Programming
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3
Low-Level Programming
A low-level programming interfa ce of ACL-6128 is described in this
chapter. If you wish to write your own applications based on primitive I/O
functions (
inportb and outportb ) instead of using the ACL-6128's library,
you have to be careful to understand the meaning of register structure.
Here, you will get all detailed information of the ACL-6128's register
format and control procedures.
3.1 I/O Port Address Map
Actually, the ACL-6128 only requires 4 consecutive addresses in the PC
I/O address space. The following table (Table 3.1) shows the location of
each register and driver relative to the base address, and its description.
Location Write Read
Base + 0 CH1 High Byte Data Not Used
Base + 1 CH1 Low Byte Data Not Used
Base + 2 CH2 High Byte Data Not Used
Base + 3 CH2 Low Byte Data Not Used
Table 3.1 I/O Register Map