HD64F3684FP Renesas Electronics America, HD64F3684FP Datasheet - Page 291
HD64F3684FP
Manufacturer Part Number
HD64F3684FP
Description
IC H8 MCU FLASH 32K 64LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300H Tinyr
Datasheet
1.HD64F3684GFPV.pdf
(538 pages)
Specifications of HD64F3684FP
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, SCI
Peripherals
PWM, WDT
Number Of I /o
45
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
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Manufacturer:
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Quantity:
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Part Number:
HD64F3684FPV
Manufacturer:
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Quantity:
20 000
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15.3.2
PWDRU and PWDRL indicate high level width in one PWM waveform cycle. PWDRU and
PWDRL are 14-bit write-only registers, with the upper 6 bits assigned to PWDRU and the lower 8
bits to PWDRL. When read, all bits are always read as 1.
Both PWDRU and PWDRL are accessible only in bytes. Note that the operation is not guaranteed
if word access is performed. When 14-bit data is written in PWDRU and PWDRL, the contents
are latched in the PWM waveform generator and the PWM waveform generation data is updated.
When writing the 14-bit data, the order is as follows: PWDRL to PWDRU.
PWDRU and PWDRL are initialized to H'C000.
15.4
When using the 14-bit PWM, set the registers in this sequence:
1. Set the PWM bit in the port mode register 1 (PMR1) to set the P11/PWM pin to function as a
2. Set the PWCR0 bit in PWCR to select a conversion period of either.
3. Set the output waveform data in PWDRU and PWDRL. Be sure to write byte data first to
One conversion period consists of 64 pulses, as shown in figure 15.2. The total high-level width
during this period (T
expressed as follows:
where t is the period of PWM clock input: 2/ (bit PWCR0 = 0) or 4/ (bit PWCR0 = 1).
If the data value in PWDRU and PWDRL is from H'FFC0 to H'FFFF, the PWM output stays high.
When the data value is H'C000, T
PWM output pin.
PWDRL and then to PWDRU. When the data is written in PWDRU, the contents of these
registers are latched in the PWM waveform generator, and the PWM waveform generation
data is updated in synchronization with internal signals.
T
T
PWM Data Registers U and L (PWDRU, PWDRL)
Operation
H
H
= (data value in PWDRU and PWDRL + 64) t /2
= 64 t /2 = 32 t
H
) corresponds to the data in PWDRU and PWDRL. This relation can be
H
is calculated as follows:
Rev.5.00 Nov. 02, 2005 Page 257 of 500
Section 15 14-Bit PWM
REJ09B0027-0500
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