DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 292
DF2148BTE20
Manufacturer Part Number
DF2148BTE20
Description
IC H8S MCU FLASH 128K 100-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2100r
Specifications of DF2148BTE20
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
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
-
Other names
HD64F2148BTE20
HD64F2148BTE20
HD64F2148BTE20
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF2148BTE20V
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Section 9 8-Bit PWM Timer (PWM)
Table 9.3
Internal Clock
Frequency
9.3.2
PWDR are 8-bit readable/writable registers. The PWM has sixteen PWM data registers. Each
PWDR specifies the duty cycle of the basic pulse to be output, and the number of additional
pulses. The value set in PWDR corresponds to a 0 or 1 ratio in the conversion period. The upper
four bits specify the duty cycle of the basic pulse as 0/16 to 15/16 with a resolution of 1/16. The
lower four bits specify how many extra pulses are to be added within the conversion period
comprising 16 basic pulses. Thus, a specification of 0/256 to 255/256 is possible for 0/1 ratios
within the conversion period. For 256/256 (100%) output, port output should be used. PWDR0 to
PWDR15 are initialized to H'00.
9.3.3
Each PWDPR selects the PWM output phase.
Bit
7
6
5
4
3
2
1
0
Rev. 3.00 Mar 21, 2006 page 236 of 788
REJ09B0300-0300
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/8
/16
PWDPRA
Bit Name
OS7
OS6
OS5
OS4
OS3
OS2
OS1
OS0
PWM Data Registers (PWDR0 to PWDR15)
PWM Data Polarity Registers A and B (PWDPRA, PWDPRB)
Resolution, PWM Conversion Period and Carrier Frequency when = 10 MHz
Initial Value
0
0
0
0
0
0
0
0
Resolution
100 ns
200 ns
400 ns
800 ns
1600 ns
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Output Select 7 to 0
These bits select the PWM output phase. Bits OS7 to
OS0 correspond to outputs PW7 to PW0.
0: PWM direct output (PWDR value corresponds to high
1: PWM inverted output (PWDR value corresponds to
width of output)
low width of output)
PWM Conversion
Period
25.6 s
51.2 s
102.4 s
204.8 s
409.6 s
Carrier Frequency
625 kHz
312.5 kHz
156.3 kHz
78.1 kHz
39.1 kHz
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