DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 413

• 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: -

Notes: 1. Writing 0 to this bit after reading it as 1 clears the flag and is the only allowed way.
10.3.4
SPOER is an 8-bit readable/writable register that controls high-impedance state of the pins.
Bit
7 to 2
1, 0
Bit
7 to 3 —
2
Bit Name
—
2. Can be modified only once after a power-on reset.
Bit Name
⎯
POE8M[1:0] 00
Software Port Output Enable Register (SPOER)
Initial value:
Initial
value
All 0
Initial
value
All 0
0
R/W:
Bit:
R/W
R
R/W*
R
7
0
-
R/W
R
R/W
2
R
6
0
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
POE8 mode 1 and 0
These bits select the input mode of the POE8 pin.
00: Accept request on falling edge of POE8 input
01: Accept request when POE8 input has been sampled
10: Accept request when POE8 input has been sampled
11: Accept request when POE8 input has been sampled
R
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Reserved
This bit is always read as 0. The write value should
always be 0.
5
0
-
for 16 Pφ/8 clock pulses and all are low level.
for 16 Pφ/16 clock pulses and all are low level.
for 16 Pφ/128 clock pulses and all are low level.
R
4
0
-
R
3
0
-
R/W
Rev. 5.00 Mar. 06, 2009 Page 393 of 770
2
0
-
CH0HIZ
MTU2
R/W
1
0
CH34HIZ
MTU2
R/W
0
0
REJ09B0243-0500