DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 219

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

7.7.6
The relationship between register setting values and pin functions is as follows.
• P67/RxD2/D7
• Extended Mode (EXPE = 1)
Note:
• Single-Chip Mode (EXPE = 0)
• P66/TxD2/D6
• Extended Mode (EXPE = 1)
Note:
Bus width*
RE
P67DDR
Pin function
RE
P67DDR
Pin function
Bus width*
TE
P66DDR
Pin function
The pin function is switched as shown below according to the combination of the operating
mode, the RE bit in SCR of the SCI_2, and the P67DDR bit.
The pin function is switched as shown below according to the combination of the operating
mode, the TE bit in SCR of the SCI_2, and the P66DDR bit.
* When the ABW3 to ABW1 bits in BCRA3 to BCRA1 are all set to 1, bus width is 8 bits,
* When the ABW3 to ABW1 bits in BCRA3 to BCRA1 are all set to 1, bus width is 8 bits,
Pin Functions
if any are cleared to 0, bus width is 16 bits.
if any are cleared to 0, bus width is 16 bits.
P67 input pin
Normal Extended Mode (ADMXE = 0)
Normal Extended Mode (ADMXE = 0)
D7 I/O pin
D6 I/O pin
16-bit
16-bit
⎯
⎯
⎯
⎯
0
0
Single-chip operation
Single-chip operation
P67 output pin
8-bit
8-bit
1
Rev.2.00 May. 28, 2009 Page 179 of 732
Multiplex Extended Mode
Multiplex Extended Mode
Single-chip operation
Single-chip operation
RxD2 input pin
(ADMXE = 1)
(ADMXE = 1)
⎯
⎯
⎯
1
REJ09B0059-0200