HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 100

• 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: -

Section 3 MCU Operating Modes
3.3
SYSCR is an 8-bit register that controls the operation of the H8/3024 Group.
Bit 7—Software Standby (SSBY): Enables transition to software standby mode. (For further
information about software standby mode see section 20, Power-Down State.)
When software standby mode is exited by an external interrupt, and a transition is made to normal
operation, this bit remains set to 1. To clear this bit, write 0.
Bit 7
SSBY
0
1
Rev. 2.00 Sep 20, 2005 page 60 of 800
REJ09B0260-0200
Bit
Initial value
Read/Write
System Control Register (SYSCR)
Description
SLEEP instruction causes transition to sleep mode
SLEEP instruction causes transition to software standby mode
SSBY
Software standby
Enables transition to software standby mode
R/W
7
0
STS2
R/W
Standby timer select 2 to 0
These bits select the waiting time at
recovery from software standby mode
6
0
STS1
R/W
5
0
STS0
R/W
4
0
User bit enable
Selects whether to use the UI bit in CCR
as a user bit or an interrupt mask bit
R/W
UE
3
1
NMI edge select
Selects the valid edge
of the NMI input
NMIEG
R/W
2
0
Software standby
output port enable
Selects the output state
of the address bus and
bus control signals in
software standby mode
SSOE
R/W
1
0
RAM enable
Enables or
disables
on-chip RAM
(Initial value)
RAME
R/W
0
1