Element: cdp1877
CDP1877 Programmable Interrupt Controller I/O definition.
| child element | attribute | value | description |
|---|---|---|---|
| in | mask, q, type | port (1 to 7) | CDP1877 input port definition. The type attribute indicates the input function: type="irq" to read irq register, type="polling" to read polling register, type="vector" to read vector register, type="status" to read status. For details about attribute and value usage see XML - I/O |
| iogroup | group number (8 bit) | CDP1877 iogroup definition. For details about value usage see XML - I/O | |
| out | mask, q, type | port (1 to 7) | CDP1877 output port definition. The type attribute indicates the output function: type="mien" to write main interrupt enable, type="mask" to write mask register, type="control" to write control, type="page" to write page register. For details about attribute and value usage see XML - I/O |