HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 715

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

20.2
20.2.1
SCKCR is an 8-bit readable/writable register that performs clock output control, selection of
operation when the PLL circuit frequency multiplication factor is changed, and medium-speed
mode control.
SCKCR is initialized to H'00 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7— Clock Output Disable (PSTOP): Controls output.
Bits 6 to 4—Reserved: These bits are always read as 0 and cannot be modified.
Bit 3—Frequency Multiplication Factor Switching Mode Select (STCS): Selects the operation
when the PLL circuit frequency multiplication factor is changed.
Bits 2 to 0—System Clock Select 2 to 0 (SCK2 to SCK0): These bits select the bus master
clock.
Bit 7
PSTOP
0
1
Bit 3
STCS
0
1
Bit
Initial value
R/W
Register Descriptions
System Clock Control Register (SCKCR)
High-speed Mode,
Medium-Speed Mode
Fixed high
Description
Specified multiplication factor is valid after transition to software standby mode
Specified multiplication factor is valid immediately after STC bits are rewritten
:
:
:
output (initial value)
PSTOP
R/W
7
0
—
—
6
0
Sleep Mode
Fixed high
—
—
5
0
output
Description
—
—
4
0
Rev. 5.00 Jan 10, 2006 page 689 of 1042
Software
Standby Mode
Fixed high
Fixed high
STCS
R/W
3
0
Section 20 Clock Pulse Generator
SCK2
R/W
2
0
SCK1
Hardware
Standby Mode
High impedance
High impedance
R/W
REJ09B0275-0500
1
0
(Initial value)
SCK0
R/W
0
0