DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 504

• 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: -

Note:
13.3.3
ADCR for each module controls A/D conversion.
Initial value:
Rev. 5.00 Mar. 06, 2009 Page 484 of 770
REJ09B0243-0500
Bit
2 to 0
Bit
15, 14
13
12 to 0 ⎯
R/W:
Bit:
* Writing 0 to this bit after reading it as 1 clears the flag and is the only allowed way.
Bit Name
CH[2:0]
Bit Name
⎯
ADST
A/D Control Registers_0 and _1 (ADCR_0 and ADCR_1)
15
R
0
-
14
R
0
-
ADST
R/W
13
Initial
Value
000
Initial
Value
All 0
0
All 0
0
12
R
0
-
11
R
0
-
R/W
R/W
R/W
R
R/W
R
10
R
0
-
Description
Channel Select 2 to 0
Select analog input channels. See table 13.3.
When changing the operating mode, first clear the
ADST bit to 0.
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
A/D Start
Starts or stops A/D conversion. When this bit is set to
1, A/D conversion is started. When this bit is cleared
to 0, A/D conversion is stopped and the A/D converter
enters the idle state. In single or single-cycle scan
mode, this bit is automatically cleared to 0 when A/D
conversion ends on the selected single channel. In
continuous scan mode, A/D conversion is continuously
performed for the selected channels in sequence until
this bit is cleared by a software, reset, or in software
standby mode or module standby mode.
Reserved
These bits are always read as 0. The write value
should always be 0.
R
9
0
-
R
8
0
-
R
7
0
-
R
6
0
-
R
5
0
-
R
4
0
-
R
3
0
-
R
2
0
-
R
1
0
-
R
0
0
-