upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 733

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upd70f3402

Manufacturer Part Number
upd70f3402
Description
32-/16-bit Single-chip Microcontroller With Can Interface
Manufacturer
Renesas Electronics Corporation.
Datasheet
18.5.3 Securing setup time when releasing IDLE2 mode
Secure the setup time for the ROM (flash memory) after releasing the IDLE2 mode because the
operation of the blocks other than the main clock oscillator stops after IDLE2 mode is set.
(1)
(2)
Oscillated waveform
IDLE mode status
Releasing IDLE2 mode by non-maskable interrupt request or unmasked maskable interrupt
request
Secure the specified setup time by setting the OSTS register.
When the releasing source is generated, the dedicated internal timer starts counting according to
the OSTS register setting. When it overflows, the normal operation mode is restored.
Interrupt request
Release by reset input (RESET pin input, WDT2RES occurrence)
This operation is the same as that of a normal reset.
The oscillation stabilization time is the initial value of the OSTS register, 2
Main clock
User’s Manual U16702EE3V2UD00
Figure 18-5: IDLE Mode Timing
Chapter 18 Standby Function
ROM circuit stopped
Setup time count
13
/f
X
.
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