Datasheet

78K0/Kx2-L CHAPTER 20 RESET FUNCTION
R01UH0028EJ0400 Rev.4.00 663
Sep 27, 2010
Table 20-2. Hardware Statuses After Reset Acknowledgment (4/4)
Hardware
Status After Reset
Acknowledgment
Note 1
Reset function Reset control flag register (RESF) 00H
Note 2
Low-voltage detection register (LVIM) 00H
Note 2
Low-voltage detector
Low-voltage detection level selection register (LVIS) 00H
Note 2
Request flag registers 0L, 0H, 1L, 1H (IF0L, IF0H, IF1L, IF1H) 00H
Mask flag registers 0L, 0H, 1L, 1H (MK0L, MK0H, MK1L, MK1H) FFH
Priority specification flag registers 0L, 0H, 1L, 1H (PR0L, PR0H, PR1L,
PR1H)
FFH
External interrupt rising edge enable registers 0, 1 (EGPCTL0, EGPCTL1) 00H
Interrupt
External interrupt falling edge enable registers 0, 1 (EGNCTL0, EGNCTL1) 00H
Regulator Regulator mode control register (RMC) 00H
Notes 1. During reset signal generation or oscillation stabilization time wait, only the PC contents among the hardware
statuses become undefined. All other hardware statuses remain unchanged after reset.
2. These values vary depending on the reset source.
Reset Source
Register
RESET Input Reset by POC Reset by WDT
Reset by LVI
(Except Reset
by LVI Default
Start Function)
Reset by LVI
Default Start
Function
WDTRF flag Set (1) Held RESF
LVIRF flag
Cleared (0) Cleared (0)
Held Set (1)
Cleared (0)
LVIM
LVIS
Cleared (00H) Cleared (00H) Cleared (00H) Held Cleared (00H)
Remark The special function registers (SFRs) mounted depend on the product. Refer to 3.2.3 Special function
registers (SFRs).
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