DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 452

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

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: -

12.3.9
The DIR bit in the serial direction control register (SCSDCR) selects LSB-first or MSB-first
transfer. With an 8-bit data length, LSB-first/MSB-first selection is available regardless of the
communication mode.
Rev. 5.00 Mar. 06, 2009 Page 432 of 770
REJ09B0243-0500
Bit
7 to 4 ⎯
3
2
1
0
Bit Name
DIR
⎯
⎯
⎯
Serial Direction Control Register (SCSDCR)
Initial
Value
All 1
0
0
1
0
Initial value:
R/W:
Bit:
R/W
R
R/W
R
R
R
R
7
1
-
R
6
1
-
Description
Reserved
These bits are always read as 1. The write value should
always be 1.
Data Transfer Direction
Selects the serial/parallel conversion format. Valid for
an 8-bit transmit/receive format.
0: SCTDR contents are transmitted in LSB-first order
1: SCTDR contents are transmitted in MSB-first order
Reserved
This bit is always read as 0. The write value should
always be 0.
Reserved
This bit is always read as 1. The write value should
always be 1.
Reserved
This bit is always read as 0. The write value should
always be 0.
R
5
1
-
Receive data is stored in SCRDR in LSB-first
Receive data is stored in SCRDR in MSB-first
R
4
1
-
R/W
DIR
3
0
R
2
0
-
R
1
1
-
R
0
0
-