DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 653

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

19.2.2
SCKCR is an 8-bit readable/writable register that performs clock output control 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—Reserved: This bit can be read or written to, but only 0 should be written.
Bits 5 to 3—Reserved: Read-only bits, always read as 0.
Bits 2 to 0—System Clock Select (SCK2 to SCK0): These bits select the clock for the bus
master.
Bit 2
SCK2
0
1
Bit 7
PSTOP
0
1
Bit
Initial value
R/W
System Clock Control Register (SCKCR)
Bit 1
SCK1
0
1
0
1
Normal Operating
Mode
Fixed high
output (initial value)
:
:
:
PSTOP
R/W
Bit 0
SCK0
0
1
0
1
0
1
—
7
0
R/W
Description
Bus master in high-speed mode
Medium-speed clock is /2
Medium-speed clock is /4
Medium-speed clock is /8
Medium-speed clock is /16
Medium-speed clock is /32
—
—
6
0
Sleep Mode
Fixed high
output
—
—
5
0
Description
—
—
4
0
Software Standby
Mode
Fixed high
Fixed high
Rev. 4.00 Feb 15, 2006 page 627 of 900
—
—
3
0
Section 19 Power-Down Modes
SCK2
R/W
2
0
Hardware Standby
Mode
High impedance
High impedance
SCK1
R/W
REJ09B0291-0400
1
0
(Initial value)
SCK0
R/W
0
0