M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 710

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.2 Control Registers
708
(1) Power save control register (PSC)
Note For details, see Table 17-1 Interrupt Source List.
Cautions 1. Be sure to clear bits 0, 2, 3, and 5 to 7 to “0”.
The PSC register is an 8-bit register that controls the standby function. The STB bit of this register is used to
specify the standby mode. This register is a special register (see 3.4.8 Special registers). This register can
be written only by a combination of specific sequences.
This register can be read or written in 8-bit or 1-bit units.
Reset sets this register to 00H.
2. Before setting a standby mode by setting the STB bit to 1, be sure to set the PCC register
3. To set the IDLE mode or STOP mode, set the PCC register to 03H, and the PSMR.PSM0 bit
After reset:
PSC
to 03H and then set the STB bit to 1. Otherwise, the standby mode may not be set or
released. After releasing the standby mode, change the value of the PCC register to the
desired value.
in that order and then set the STB bit to 1.
INTM
STB
00H
0
0
1
0
1
Standby mode release by INTxx request enabled
Standby mode release by INTxx request disabled
Normal mode
Standby mode
R/W
0
Standby mode control by maskable interrupt request (INTxx
CHAPTER 18 STANDBY FUNCTION
Address:
User’s Manual U16543EJ4V0UD
0
FFFFF1FEH
INTM
< >
Sets operation mode
0
0
STB
< >
Note
)
0