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The first four bytes, Base+0 through Base+3, of address space on the
Table 12
Address | Register Description |
|
|
Base + 0 | SCC Data Port, Channel A |
|
|
Base + 1 | SCC Control Port, Channel A |
Base + 2 | SCC Data Port, Channel B |
|
|
Base + 3 | SCC Control Port, Channel B |
|
|
Base + 4 | Communications Register |
|
|
Base + 5 | Configuration Register |
|
|
Base + 6 | Reserved |
Base + 7 | Reserved |
|
|
Information on the internal registers of the SCC can be found in the chapter titled SCC GENERAL INFORMATION starting on page 4. The two onboard registers give the user additional options pertaining to DMA, and Interrupts. Information on the configuration register and the communications register can be found in the chapters CONFIGURATION REGISTER on page 21, and COMMUNICATIONS REGISTER on page 23.
Quatech Inc., | 16 |