HD6432621 Hitachi, HD6432621 Datasheet - Page 885

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

B.2
Possible types of access
R/W
W
Bit
numbers
Initial bit
values
R
Register
acronym
Read only
Write only
Read and write
Functions
SBYCR—Standby Control Register
Bit
Initial value
Read/Write
:
:
:
Software standby
SSBY
R/W
0
1
7
0
Transition to sleep mode after execution of SLEEP instruction
Transition to software standby mode after execution of SLEEP instruction
STS2
Register
name
R/W
6
0
Standby timer select
0
1
STS1
R/W
5
0
0
1
0
1
0
1
0
1
0
1
0
1
H'FDE4
Standby time = 8192 states
Standby time = 16384 states
Standby time = 32768 states
Standby time = 65536 states
Standby time = 131072 states
Standby time = 262144 states
Reserved
Standby time = 16 states
STS0
Output port enable
R/W
0 In software standby mode, address bus and
1
4
0
bus control signals are high-impedance
In software standby mode, address bus and
bus control signals retain their output state
Address to which the
register is mapped
OPE
R/W
3
1
—
—
2
0
Power-Down Modes
—
—
1
0
R/W
—
0
0
Name of
on-chip
supporting
module
Names of the
bits. Dashes
(—) indicate
reserved bits.
Full name
of bit
Descriptions
of bit settings
841