DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 407

• 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: -

10.3.1
ICSR1 is a 16-bit readable/writable register that selects the POE0, POE1, and POE3 pin input
modes, controls the enable/disable of interrupts, and indicates status.
Initial value:
Bit
15
14
Notes:
R/W:
Bit:
1.
2.
POE3F
R/(W)*
Bit Name
POE3F
⎯
Writing 0 to this bit after reading it as 1 clears the flag and is the only allowed way.
Can be modified only once after a power-on reset.
Input Level Control/Status Register 1 (ICSR1)
15
0
1
R/(W)*
14
0
-
1
R/(W)*
POE1F POE0F
13
0
Initial
value
0
0
1
R/(W)*
12
0
1
R/W
R/(W)*
R/(W)*
11
R
0
-
10
R
0
-
1
1
Description
POE3 Flag
(Supported only by the SH7125.)
This flag indicates that a high impedance request has
been input to the POE3 pin.
[Setting condition]
•
Reserved
This bit is always read as 0. The write value should
always be 0.
[Clearing conditions]
•
•
R
9
0
-
By writing 0 to POE3F after reading POE3F = 1
(when the falling edge is selected by bits 7 and 6 in
ICSR1)
By writing 0 to POE3F after reading POE3F = 1 after
a high level input to POE3 is sampled at Pφ/8, Pφ/16,
or Pφ/128 clock (when low-level sampling is selected
by bits 7 and 6 in ICSR1)
When the input set by ICSR1 bits 7 and 6 occurs at
the POE3 pin
R/W R/W*
PIE1
8
0
POE3M[1:0]
7
0
2
R/W*
Rev. 5.00 Mar. 06, 2009 Page 387 of 770
6
0
2
R/W*
5
0
-
2
R/W*
4
0
-
2
R/W*
POE1M[1:0]
3
0
2
REJ09B0243-0500
R/W*
2
0
2
R/W*
POE0M[1:0]
1
0
2
R/W*
0
0
2