Datasheet

CHAPTER 20 RESET FUNCTION
User’s Manual U18698EJ1V0UD
477
Table 20-2. Hardware Statuses After Reset Acknowledgment (3/3)
Hardware Status After Reset
Acknowledgment
Note 1
Receive buffer register 6 (RXB6) FFH
Transmit buffer register 6 (TXB6) FFH
Asynchronous serial interface operation mode register 6 (ASIM6) 01H
Asynchronous serial interface reception error status register 6 (ASIS6) 00H
Asynchronous serial interface transmission status register 6 (ASIF6) 00H
Clock selection register 6 (CKSR6) 00H
Baud rate generator control register 6 (BRGC6) FFH
Asynchronous serial interface control register 6 (ASICL6) 16H
Serial interface UART6
Input switch control register (ISC) 00H
LCD mode register (LCDMD) 00H
LCD display mode register (LCDM) 00H
LCD controller/driver
LCD clock control register 0 (LCDC0) 00H
Transmit buffer register (MC0TX) FFH
Transmit bit count specification register (MC0BIT) 07H
Control register 0 (MC0CTL0) 10H
Control register 1 (MC0CTL1) 00H
Control register 2 (MC0CTL2) 1FH
Manchester code
generator
Status register (MC0STR) 00H
Key interrupt Key return mode register (KRM) 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