tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 28

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

2.1 Functions of the CPU Core
2. Functional Description
Example :Placing the device in IDLE mode
(2)
ing IDLE mode, the device retains the following state.
(Released normally)
IDLE mode
IDLE mode is controlled by System Control Register 2 (SYSCR2) and a maskable interrupt. Dur-
1. The CPU and watchdog timer stop operating.
2. The data memory, register, program status word, and port output latch hold the state in
3. The program counter holds the instruction address two instructions ahead the one that
which they were immediately before entering IDLE mode.
placed the device in IDLE mode.
The peripheral hardware continues operating.
SET
(SYSCR2) . 4
Figure 2-9 IDLE Mode
No
No
Place the device in IDLE
Stop the CPU and WDT
Execute the instruction
next to one that placed
mode (by instruction)
device IDLE mode
Interrupt request ?
Interrupt handling
Reset input ?
Page 18
IMF = 1
Yes
Yes
No
(Released by interrupt)
Yes
Reset
TMP88F846UG