DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 582

• 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: -

16.2.2
PBDRH and PBDRL are 16-bit readable/writable registers that store port B data. Bits PB16DR,
PB5DR, and PB3DR to PB1DR correspond to pins PB16, PB5, and PB3 to PB1, respectively
(multiplexed functions omitted here) in the SH7125. Bits PB5DR, PB3DR, and PB1DR
correspond to pins PB5, PB3, and PB1, respectively (multiplexed functions omitted here) in the
SH7124.
When a pin function is general output, if a value is written to PBDRH or PBDRL, that value is
output directly from the pin, and if PBDRH or PBDRL is read, the register value is returned
directly regardless of the pin state.
When a pin function is general input, if PBDRH or PBDRL is read, the pin state, not the register
value, is returned directly. If a value is written to PBDRH or PBDRL, although that value is
written into PBDRH or PBDRL, it does not affect the pin state. Table 16.4 summarizes port B data
register read/write operations.
• PBDRH (SH7125)
Initial value:
Rev. 5.00 Mar. 06, 2009 Page 562 of 770
REJ09B0243-0500
Bit
15 to 1
0
R/W:
Bit:
Port B Data Registers H and L (PBDRH and PBDRL)
15
R
0
-
Bit Name
—
PB16DR
14
R
0
-
13
R
0
-
Initial
Value
All 0
0
12
R
0
-
11
R
0
-
R/W
R
R/W
10
R
0
-
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
See table 16.4.
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
-
PB16
R/W
DR
0
0