CHAPTER 15 RESET FUNCTION
Preliminary User’s Manual U19014EJ1V0UD
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Table 15-2. Hardware Statuses After Reset Acknowledgment (3/3)
Hardware
Status After Reset
Acknowledgment
Note 1
UF0 EP0 write register (UF0E0W)
00H
UF0 bulk-out 1 register (UF0BO1)
Undefined
UF0 bulk-out 1 length register (UF0BO1L)
00H
UF0 bulk-in 1 register (UF0BI1)
00H
UF0 device status register (UF0DSTL)
00H
UF0 EPn status register L (UF0EPnSL) (n = 0 to 2)
00H
UF0 address register (UF0ADRS)
00H
UF0 configuration register (UF0CNF)
00H
UF0 interface n register (UF0IFn) (n = 0 to 4)
00H
UF0 descriptor length register (UF0DSCL)
00H
UF0 device descriptor register n (UF0DDn) (n = 0 to 17)
Undefined
UF0 configuration/interface/endpoint descriptor register n (UF0CIEn)
(n = 0 to 255)
Undefined
USB function controller
USBF
USB function 0 buffer control register (UF0BC)
00H
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 register (EGP)
00H
Interrupt
External interrupt falling edge enable register (EGN)
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
WDTRF bit
Set (1)
Held
RESF
LVIRF bit
Cleared (0)
Cleared (0)
Held Set
(1)
LVIM
LVIS
Cleared (00H)
Cleared (00H)
Cleared (00H)
Held
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