DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 450
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
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DF71251AD50FPV
Manufacturer:
Renesas Electronics America
Quantity:
10 000
- Current page: 450 of 794
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12.3.8
SCSPTR is an 8-bit register that controls input/output and data for the ports multiplexed with the
SCI function pins. Data to be output through the TXD pin can be specified to control break of
serial transfer. Through bits 3 and 2, data reading and writing through the SCK pin can be
specified. Bit 7 enables or disables RXI interrupts. The CPU can always read and write to
SCSPTR. When reading the value on the SCI pins, use the respective port register. For details, see
section 16, I/O Ports.
Rev. 5.00 Mar. 06, 2009 Page 430 of 770
REJ09B0243-0500
Bit
7
6 to 4
3
Serial Port Register (SCSPTR)
Bit Name
EIO
⎯
SPB1IO
Initial value:
Initial
value
0
All 0
0
R/W:
Bit:
R/W
EIO
7
0
R/W
R/W
⎯
R/W
6
0
-
-
Description
Error Interrupt Only
Enables or disables RXI interrupts. While the EIO bit is
set to 1, the SCI does not request an RXI interrupt to
the CPU even if the RIE bit is set to 1.
0: The RIE bit enables or disables RXI and ERI
1: While the RIE bit is 1, only the ERI interrupt is sent to
Reserved
These bits are always read as 0. The write value should
always be 0.
Clock Port Input/Output in Serial Port
Specifies the input/output direction of the SCK pin in the
serial port. To output the data specified in the SPB1DT
bit through the SCK pin as a port output pin, set the C/A
bit in SCSMR and the CKE1 and CKE0 bits in SCSCR
to 0.
0: Does not output the SPB1DT bit value through the
1: Outputs the SPB1DT bit value through the SCK pin.
5
0
-
-
interrupts. While the RIE bit is 1, RXI and ERI
interrupts are sent to the INTC.
the INTC.
SCK pin.
4
0
-
-
SPB1IO SPB1DT
R/W
3
0
Undefined
W
2
1
0
-
-
SPB0DT
W
0
1
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