SH7052 Datasheet, PDF (819/919 Pages) Renesas Technology Corp – SuperHTM RISC engine

23.1.2 Pin Configuration
Pins related to power-down modes are shown in table 23.2.
Table 23.2 Pin Configuration
Pin Name
Hardware standby input pin
Abbreviation
HSTBY
Power-on reset input pin
RES
I/O
Input
Input
Function
Input level determines transition to
hardware standby mode
Power-on reset signal input pin
23.1.3 Related Registers
Table 23.3 shows the registers used for power-down state control.
Table 23.3 Related Registers
Name
Initial
Abbreviation R/W Value Write
Address
Read
Access
Size
Standby control register SBYCR^*1
R/W H'1F
H'FFFFEC14
8
System control register SYSCR^*1
R/W H'01
H'FFFFF708
8
Module standby control
register
MSTCR^*1
R/W H'01 H'FFFFF70A^*2 H'FFFFF70B^*3 8, 16
Notes: 1. SBYCR is accessed in three cycles, SYSCR and MSTCR in four or five cycles.
2. Write data in word units. Data cannot be written in byte or longword units.
3. Read data in byte units. Values cannot be read correctly if data is read in word or
longword units.
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