HD64F2145BTE20 Renesas Electronics America, HD64F2145BTE20 Datasheet - Page 290
HD64F2145BTE20
Manufacturer Part Number
HD64F2145BTE20
Description
IC H8S MCU FLASH 256K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of HD64F2145BTE20
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SCI, X-Bus
Peripherals
PWM, WDT
Number Of I /o
74
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
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
-
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Section 9 8-Bit PWM Timer (PWM)
9.3.1
PWSL is used to select the input clock and the PWM data register.
Rev. 3.00 Mar 21, 2006 page 234 of 788
REJ09B0300-0300
Bit
7
6
5
4
Bit Name
PWCKE
PWCKS
—
—
PWM Register Select (PWSL)
Initial Value
0
0
1
0
R/W
R/W
R/W
R
R
Description
PWM Clock Enable
PWM Clock Select
These bits, together with bits PWCKB and PWCKA in
PCSR, select the internal clock input to TCNT in the
PWM. For details, see table 9.2.
The resolution, PWM conversion period, and carrier
frequency depend on the selected internal clock, and
can be obtained from the following equations.
Resolution (minimum pulse width) = 1/internal clock
frequency
PWM conversion period = resolution
Carrier frequency = 16/PWM conversion period
With a 10 MHz system clock ( ), the resolution, PWM
conversion period, and carrier frequency are as shown
in table 9.3.
Reserved
This bit is always read as 1 and cannot be modified.
Reserved
This bit is always read as 0 and cannot be modified.
256
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