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ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller QFP 144 (20x20) 32-Bit 28.7 MHz I/O number 98
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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
*
POE3
POE2
POE1
POE0
Output level
detection circuit
Output level
detection circuit
Output level
detection circuit
Input level detection circuit
Falling-edge
detection circuit
Low-level
detection circuit
OCSR
ICSR
φ/8 φ/16 φ/128
High-
impedance
request control
signal
Interrupt
request
Note: * Includes multiplexed pins.
Figure 12.125 POE Block Diagram