DF2148BTE20 Renesas Electronics America, DF2148BTE20 Datasheet - Page 302
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 10 14-Bit PWM Timer (PWMX)
10.3.2
DADRA corresponds to PWM (D/A) channel A, and DADRB to PWM (D/A) channel B. Since
DADR consists of 16-bit data, DADR transfers data to the CPU via the temporary register
(TEMP). For details, refer to section 10.4, Bus Master Interface.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Rev. 3.00 Mar 21, 2006 page 246 of 788
REJ09B0300-0300
DADRA
Bit Name
DA13
DA12
DA11
DA10
DA9
DA8
DA7
DA6
DA5
DA4
DA3
DA2
DA1
DA0
CFS
—
PWM (D/A) Data Registers A and B (DADRA, DADRB)
Initial Value
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Description
D/A Data 13 to 0
These bits set a digital value to be converted to an
analog value.
In each base cycle, the DACNT value is continually
compared with the DADR value to determine the duty
cycle of the output waveform, and to decide whether to
output a fine-adjustment pulse equal in width to the
resolution. To enable this operation, this register must
be set within a range that depends on the CFS bit. If the
DADR value is outside this range, the PWM output is
held constant.
A channel can be operated with 12-bit precision by
keeping the two lowest data bits (DA1 and DA0) cleared
to 0. The two lowest data bits correspond to the two
highest bits in DACNT.
Carrier Frequency Select
0: Base cycle = resolution (T)
1: Base cycle = resolution (T)
Reserved
This bit is always read as 1 and cannot be modified.
DADR range = H'0401 to H'FFFD
DADR range = H'0103 to H'FFFF
64
256
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