Subsections

- 3.5.5.1 __sfr
- 3.5.5.2 __sfr16

## 3.5.5 PDK14/PDK15 intrinsic named address spaces

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3.5.5.1 __sfr

The Padauk family has separate address spaces for memory and input/output memory. I/O memory is accessed with special instructions, e.g.:

> __sfr __at(0x18) gpcc; /* define a var in I/O space at 18h called gpcc */

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3.5.5.2 __sfr16

The Padauk family has a 16-bit timer accessed with special instructions.