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(17) X1, X2 (Crystal)
These pins connect a resonator for system clock generation.
They also can input external clocks. For external clock input, connect to the X1 pin and leave the X2 pin
open.
(18) CV
(Power supply for clock generator)
DD
This is the positive power supply pin for the clock generator.
(19) CV
(Ground for clock generator)
SS
This is the ground pin for the clock generator.
(20) V
(Power supply)
DD5
This is the positive power supply pin for the peripheral interface.
(21) V
(Ground)
SS5
This is the ground pin for the peripheral interface.
(22) V
(Power supply)
DD3
This is the positive power supply pin for the internal CPU.
(23) V
(Ground)
SS3
This is the ground pin for the internal CPU.
(24) CLK_DBG (Debug clock) ... Input
This is the clock input pin for the debug interface (3.3 V interface).
(25) SYNC (Debug synchronization) ... Input
This is the command synchronization input pin for debugging (3.3 V interface).
(26) AD0_DBG to AD3_DBG (Debug address/data bus) ... I/O
These are command interface pins for debugging (3.3 V interface).
(27) TRIG_DBG (Debug trigger) ... Output
This is the address match trigger signal output pin for debugging (3.3 V interface).
(28) AV
(Analog power supply)
DD
This is the analog positive power supply pin for the A/D converter.
(29) AV
(Analog ground)
SS
This is the ground pin for the A/D converter.
(30) AV
, AV
(Analog reference voltage) ... Input
REF0
REF1
These are the reference voltage supply pins for the A/D converter.
44
CHAPTER 2 PIN FUNCTIONS
User's Manual U14492EJ5V0UD
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