HD64F3644H Renesas Electronics America, HD64F3644H Datasheet - Page 365

• Manufacturer Part Number: HD64F3644H
• Description: IC H8 MCU FLASH 32K 64-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Lr

Specifications of HD64F3644H

• Core Processor: H8/300L
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 64-QFP
• Package: 64PQFP
• Family Name: H8
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 45
• Interface Type: SCI
• On-chip Adc: 8-chx8-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Bit 0 Clock Select 0 (PWCR0): Bit 0 selects the clock supplied to the 14-bit PWM. This bit is a
write-only bit; it is always read as 1.
Bit 0: PWCR0
0
1
Note:
11.2.2
PWDRU
PWDRL
PWDRU and PWDRL form a 14-bit write-only register, with the upper 6 bits assigned to PWDRU
and the lower 8 bits to PWDRL. The value written to PWDRU and PWDRL gives the total high-
level width of one PWM waveform cycle.
When 14-bit data is written to PWDRU and PWDRL, the register contents are latched in the PWM
waveform generator, updating the PWM waveform generation data. The 14-bit data should always
be written in the following sequence:
1. Write the lower 8 bits to PWDRL.
2.
PWDRU and PWDRL are write-only registers. If they are read, all bits are read as 1.
Bit
Initial value
Read/Write
Bit
Initial value
Read/Write
Write the upper 6 bits to PWDRU.
* t Period of PWM input clock
PWM Data Registers U and L (PWDRU, PWDRL)
PWDRL7 PWDRL6 PWDRL5 PWDRL4 PWDRL3 PWDRL2 PWDRL1 PWDRL0
The input clock is /2 (t * = 2/ ). The conversion period is 16,384/ , with
a minimum modulation width of 1/
The input clock is /4 (t * = 4/ ). The conversion period is 32,768/ , with
a minimum modulation width of 2/ .
Description
W
7
1
7
0
W
1
0
6
6
PWDRU5 PWDRU4 PWDRU3 PWDRU2 PWDRU1 PWDRU0
W
W
0
0
5
5
W
W
4
0
4
0
Rev. 6.00 Sep 12, 2006 page 343 of 526
W
W
3
0
3
0
W
W
2
0
2
0
Section 11 14-Bit PWM
REJ09B0326-0600
W
W
1
0
1
0
(initial value)
W
W
0
0
0
0