HD64F36912GFH Renesas Electronics America, HD64F36912GFH Datasheet - Page 104

• Manufacturer Part Number: HD64F36912GFH
• Description: IC H8 MCU FLASH 8K 32-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H Tinyr

Specifications of HD64F36912GFH

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 12MHz
• Connectivity: I²C, SCI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 5 Clock Pulse Generators
5.2.4
CKCSR selects the port C function, controls switching the system clocks, and indicates the system
clock state.
Rev. 3.00 Sep. 14, 2006 Page 74 of 408
REJ09B0105-0300
Bit
7
6
5
4
3
2
1
0
Clock Control/Status Register (CKCSR)
Bit Name
PMRC1
PMRC0
OSCSEL
CKSWIE
CKSWIF
CKSTA
Initial
Value
0
0
0
0
0
0
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
Description
Port C Function Select 1 and 0
PMRC1 PMRC0 PC1
0
1
0
1
Reserved
Although this bit is readable/writable, it should not be set
to 1.
LSI Operation Clock Select
This bit forcibly selects the system clock of this LSI.
0: Selects the on-chip oscillator clock as the system clock.
1: Selects the external clock as the system clock.
Clock Switch Interrupt Enable
Setting this bit to 1 enables the clock switch interrupt
request.
Clock Switch Interrupt Request Flag
[Setting condition]
[Clearing condition]
Reserved
This bit is always read as 1.
LSI Operating Clock Status
0: This LSI operates on on-chip oscillator clock.
1: This LSI operates on external clock.
When the external clock is switched to the on-chip
oscillator clock
When writing 0 after reading 1
0
0
1
1
CLKOUT I/O
I/O
OSC2
I/O
PC0
I/O
OSC1 (external clock input)
OSC1