Freescale Semiconductor MC68HC08KH12 - Manual (Page 199)

MC68HC(7)08KH12 — Rev. 1.1 Advance Information
Freescale Semiconductor 199
XREF2–XREF0 — Reference Voltage Selection X
These bits sets the slicing reference voltage for optical interface
associated with PTE0 and PTE1.
YREF2–YREF0 — Reference Voltage Selection Y
These bits sets the slicing reference voltage for optical interface
associated with PTE2 and PTE3.
XREF[2:0] / YREF[2:0]
PTE0-PTE1 / PTE2-PTE3
Reference Voltage (mV)
0 200
1 300
2 400
3 500
4 600
5 700
6 800
7 900