HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 635

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 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: -

20.2.2
MSTCRH is an 8-bit readable/writable register that controls output of the system clock ( ). It also
controls the module standby function, which places individual on-chip supporting modules in the
standby state. Module standby can be designated for the SCI0, SCI1.
MSTCRH is initialized to H'78 by a reset and in hardware standby mode. It is not initialized in
software standby mode.
Bit 7— Clock Stop (PSTOP): Enables or disables output of the system clock ( ).
Bits 6 to 3—Reserved: These bits cannot be modified and are always read as 1.
Bit 2—Reserved: This bit can be written and read.
Bit 1—Module Standby H1 (MSTPH1): Selects whether to place the SCI1 in standby.
Bit 7
PSTOP
0
1
Bit 1
MSTPH1
0
1
Bit
Initial value
Read/Write
Module Standby Control Register H (MSTCRH)
Description
System clock output is enabled
System clock output is disabled
Description
SCI1 operates normally
SCI1 is in standby state
PSTOP
Enables or disables
output of the system clock
R/W
clock stop
7
0
—
—
6
1
—
—
5
1
Reserved bits
—
—
4
1
Rev. 2.00 Sep 20, 2005 page 595 of 800
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—
3
1
Section 20 Power-Down State
R/W
—
2
0
Module standby H1 to 0
These bits select modules
to be placed in standby
MSTPH1
R/W
REJ09B0260-0200
1
0
(Initial value)
(Initial value)
MSTPH0
R/W
0
0