SH7040 Datasheet, PDF (482/923 Pages) Renesas Technology Corp – Renesas 32-Bit Single-Chip RISC Microprocessor SuperH RISC engine Family/SH7040 Series(CPU Core SH-2)

12.9.2 Block Diagram
The POE has input-level detection circuitry and output-level detection circuitry, as shown in the
block diagram of figure 12.125.
TIOC3B^*
TIOC3D^*
TIOC4A^*
TIOC4C^*
TIOC4B^*
TIOC4D^*
Output level
detection circuit
Output level
detection circuit
Output level
detection circuit
OCSR
ICSR
High-
impedance
request control
signal
Interrupt
request
POE3
POE2
POE1
POE0
Input level detection circuit
Falling-edge
detection circuit
Low-level
detection circuit
Note: * Includes multiplexed pins.
φ/8
φ/16
φ/128
Figure 12.125 POE Block Diagram
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