DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 279

• 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: -

9.3.4
PCSR and the CKS bit in DACR select the operating speed.
Table 9.2
Bit
7
6
5
4 to
2
1
0
PWCKXC
0
0
0
0
1
1
1
1
Bit Name
PWCKXC
PWCKXB
PWCKXA
⎯
PWCKB
PWCKA
Peripheral Clock Select Register (PCSR)
Clock Selection of PWMX
PWCKXB
0
0
1
1
0
0
1
1
Initial Value
0
0
0
0
0
0
PWCKXA
0
1
0
1
0
1
0
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
PWMX Clock Select
Select a clock cycle with the CKS bit in DACR of the
PWMX being 1. See table 9.2.
Reserved
The initial value should not be changed.
PWM Clock Select
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Operates on the system clock cycle (t
Setting prohibited
Resolution (T)
Rev.2.00 May. 28, 2009 Page 239 of 732
REJ09B0059-0200
cyc
cyc
cyc
cyc
cyc
cyc
cyc
) x 2
) x 64
) x 128
) x 256
) x 1024
) x 4096
) x 16384