DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 698

• 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: -

22.3
Output of the φ clock can be controlled by means of the PSTOP bit in SCKCR, and DDR for the
corresponding port. When the PSTOP bit is set to 1, the φ clock stops at the end of the bus cycle,
and φ output goes high. φ clock output is enabled when the PSTOP bit is cleared to 0. When DDR
for the corresponding port is cleared to 0, φ clock output is disabled and input port mode is set.
Table 22.3 shows the state of the φ pin in each processing state.
Table 22.3 φ Pin State in Each Processing State
Rev.2.00 May. 28, 2009 Page 658 of 732
REJ09B0059-0200
DDR
0
1
1
Register Setting
φ Clock Output Control
PSTOP
X
0
1
Normal Operating
State
High impedance
φ output
Fixed high
Sleep Mode
High impedance
φ output
Fixed high
Software Standby
Mode
High impedance
Fixed high
Fixed high
Hardware
Standby Mode
High impedance
High impedance
High impedance