DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 590
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
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16.3.1
Port E is a 16-bit input/output port in the SH7125 and a 12-bit input/output port in the SH7124.
Port E has the following registers. For details on register addresses and register states during each
processing, refer to section 20, List of Registers.
Table 16.5 Register Configuration
16.3.2
PEDRL is a 16-bit readable/writable register that stores port E data. Bits PE15DR to PE0DR
correspond to pins PE15 to PE0 (multiplexed functions omitted here) in the SH7125. Bits
PE15DR to PE8DR and PE3DR to PE0DR correspond to pins PE15 to PE8 and PE3 to PE0,
respectively (multiplexed functions omitted here) in the SH7124.
When a pin function is general output, if a value is written to PEDRL, that value is output directly
from the pin, and if PEDRL is read, the register value is returned directly regardless of the pin
state.
When a pin function is general input, if PEDRL is read, the pin state, not the register value, is
returned directly. If a value is written to PEDRL, although that value is written into PEDRL, it
does not affect the pin state. Table 16.6 summarizes port E data register read/write operations.
Rev. 5.00 Mar. 06, 2009 Page 570 of 770
REJ09B0243-0500
Register Name
Port E data register L
Port E port register L
Register Descriptions
Port E Data Register L (PEDRL)
Abbrevia-
tion
PEDRL
PEPRL
R/W
R/W
R
Initial Value
⎯
H'0000
H'FFFFD302
H'FFFFD31E
Address
Access Size
8, 16
8, 16
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