DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 267
DF71251AD50FPV
Manufacturer Part Number
DF71251AD50FPV
Description
MCU RISC FLASH 32K 8K 64LQFP
Manufacturer
Renesas Electronics America
Series
SuperH® SH Tinyr
Datasheet
1.DF71243N50FPV.pdf
(794 pages)
Specifications of DF71251AD50FPV
Core Processor
SH-2
Core Size
32-Bit
Speed
50MHz
Connectivity
SCI
Peripherals
POR, PWM, WDT
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 267 of 794
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Examples of Buffer Operation:
1. When TGR is an output compare register
2. When TGR is an input capture register
Figure 9.17 shows an operation example in which PWM mode 1 has been designated for
channel 0, and buffer operation has been designated for TGRA and TGRC. The settings used
in this example are TCNT clearing by compare match B, 1 output at compare match A, and 0
output at compare match B. In this example, the TTSA bit in TBTM is cleared to 0.
As buffer operation has been set, when compare match A occurs the output changes and the
value in buffer register TGRC is simultaneously transferred to timer general register TGRA.
This operation is repeated each time that compare match A occurs.
For details of PWM modes, see section 9.4.5, PWM Modes.
Figure 9.18 shows an operation example in which TGRA has been designated as an input
capture register, and buffer operation has been designated for TGRA and TGRC.
Counter clearing by TGRA input capture has been set for TCNT, and both rising and falling
edges have been selected as the TIOCA pin input capture input edge.
As buffer operation has been set, when the TCNT value is stored in TGRA upon the
occurrence of input capture A, the value previously stored in TGRA is simultaneously
transferred to TGRC.
TGRB_0
TGRA_0
H'0000
TGRC_0
TGRA_0
TIOCA
TCNT value
Transfer
H'0200
H'0200
Figure 9.17 Example of Buffer Operation (1)
H'0200
H'0450
H'0450
H'0450
Rev. 5.00 Mar. 06, 2009 Page 247 of 770
H'0520
H'0520
REJ09B0243-0500
Time
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