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CHAPTER 18 RESET FUNCTION
User’s Manual U17854EJ9V0UD
621
Table 18-2. Hardware Statuses After Reset Acknowledgment (2/3)
Hardware
Status After Reset
Acknowledgment
Note 1
Subcount register (RSUBC)
0000H
Second count register (SEC)
00H
Minute count register (MIN)
00H
Hour count register (HOUR)
12H
Day count register (DAY)
01H
Week count register (WEEK)
00H
Month count register (MONTH)
01H
Year count register (YEAR)
00H
Watch error correction register (SUBCUD)
00H
Alarm minute register (ALARMWM)
00H
Alarm hour register (ALARMWH)
12H
Alarm week register ALARMWW)
00H
Real-time counter control register 0 (RTCC0)
00H
Real-time counter control register 1 (RTCC1)
00H
Real-time counter
Real-time counter control register 2 (RTCC2)
00H
Clock output/buzzer
output controller
Clock output select registers 0, 1 (CKS0, CKS1)
00H
Watchdog timer
Enable register (WDTE)
1AH/9AH
Note 2
10-bit A/D conversion result register (ADCR)
0000H
8-bit A/D conversion result register (ADCRH)
00H
Mode register (ADM)
00H
Analog input channel specification register (ADS)
00H
A/D converter
A/D port configuration register (ADPC)
10H
Serial data registers 00, 01, 02, 03, 12, 13 (SDR00, SDR01, SDR02,
SDR03, SDR12, SDR13)
0000H
Serial status registers 00, 01, 02, 03, 12, 13 (SSR00, SSR01, SSR02,
SSR03, SSR12, SSR13)
0000H
Serial flag clear trigger registers 00, 01, 02, 03, 12, 13 (SIR00, SIR01,
SIR02, SIR03, SIR12, SIR13)
0000H
Serial mode registers 00, 01, 02, 03, 12, 13 (SMR00, SMR01, SMR02,
SMR03, SMR12, SMR13)
0020H
Serial communication operation setting registers 00, 01, 02, 03, 12, 13
(SCR00, SCR01, SCR02, SCR03, SCR12, SCR13)
0087H
Serial channel enable status registers 0, 1 (SE0, SE1)
0000H
Serial channel start registers 0, 1 (SS0, SS1)
0000H
Serial channel stop registers 0, 1 (ST0, ST1)
0000H
Serial clock select registers 0, 1 (SPS0, SPS1)
0000H
Serial output registers 0, 1 (SO0, SO1)
0F0FH
Serial output enable registers 0, 1 (SOE0, SOE1)
0000H
Serial output level registers 0, 1 (SOL0, SOL1)
0000H
Serial array unit (SAU)
Input switch control register (ISC)
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.
The reset value of WDTE is determined by the option byte setting.