HD6473937RXV Renesas Electronics America, HD6473937RXV Datasheet - Page 336
HD6473937RXV
Manufacturer Part Number
HD6473937RXV
Description
MCU 3/5V 60K 100-TQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300L SLPr
Datasheet
1.HD6473937RXV.pdf
(523 pages)
Specifications of HD6473937RXV
Core Processor
H8/300L
Core Size
8-Bit
Speed
10MHz
Connectivity
SCI
Peripherals
POR, WDT
Number Of I /o
59
Program Memory Size
60KB (60K x 8)
Program Memory Type
OTP
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-TQFP, 100-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
HD6473937RXV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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11.3
11.3.1
The A/D converter operates by successive approximations, and yields its conversion result as 10-
bit data.
A/D conversion begins when software sets the A/D start flag (bit ADSF) to 1. Bit ADSF keeps a
value of 1 during A/D conversion, and is cleared to 0 automatically when conversion is complete.
The completion of conversion also sets bit IRRAD in interrupt request register 2 (IRR2) to 1. An
A/D conversion end interrupt is requested if bit IENAD in interrupt enable register 2 (IENR2) is
set to 1.
If the conversion time or input channel needs to be changed in the A/D mode register (AMR)
during A/D conversion, bit ADSF should first be cleared to 0, stopping the conversion operation,
in order to avoid malfunction.
11.3.2
The A/D converter can be made to start A/D conversion by input of an external trigger signal.
External trigger input is enabled at pin ADTRG when bit IRQ4 in PMR1 is set to 1 and bit TRGE
in AMR is set to 1. Then when the input signal edge designated in bit IEG4 of interrupt edge
select register (IEGR) is detected at pin ADTRG, bit ADSF in ADSR will be set to 1, starting A/D
conversion.
Figure 11-2 shows the timing.
322
ø
Pin ADTRG
(when bit
IEG4 = 0)
ADSF
Operation
A/D Conversion Operation
Start of A/D Conversion by External Trigger Input
Figure 11-2 External Trigger Input Timing
A/D conversion
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