FR65E Fujitsu Microelectronics, Inc., FR65E Datasheet - Page 56

• Manufacturer Part Number: FR65E
• Description: 32-bit Microcontroller
• Manufacturer: Fujitsu Microelectronics, Inc.

56
MB91307B
(3) Block Diagram
Precautions for Use:
When the A/D converter is started from an external trigger or internal timer, the ADCS register A/D start source
bits STS1, 0 are set, and at this time the input values for the external trigger and internal timer should be set to
the inactive side. If these values are set to the active side, abnormal operation may result.
When setting the STS 1, 0 bits, set ATG = “1” input, reload timer (channel 2) = “0” output.
Caution: If internal impedance is higher than the specified value, it may not be possible to obtain analog input
Clock (CLKP)
value sampling within the specified sampling time, so that proper results will not be obtained.
Reload timer ch1 (Internal connection)
ATG (External pin trigger)
Channel decoder
Timing generator
Sample & hold circuit
Prescaler
Data register (ADCR)
AV
AD control register
CC
Internal voltage
Sequential
AVRH AV
SS
R
B
U
S
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