UPD78F9500MA-CAC-A Datasheet, PDF (203/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

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CHAPTER 12 RESET FUNCTION
Table 12-1. Hardware Statuses After Reset Acknowledgment (1/2)
Program counter (PC)^{Note 1}
Hardware
Status After Reset
Contents of reset vector
table (0000H and
0001H) are set.
Stack pointer (SP)
Undefined
Program status word (PSW)
RAM
Data memory
General-purpose registers
02H
Undefined ^{Note 2}
Undefined ^{Note 2}
Ports (P2 to P4) (output latches)
00H
Port mode registers (PM2 to PM4)
Port mode control register (PMC2)^{Note 3}
FFH
00H
Pull-up resistor option registers (PU2 to PU4)
00H
Processor clock control register (PCC)
02H
Preprocessor clock control register (PPCC)
02H
Low-speed internal oscillation mode register (LSRCM)
00H
Oscillation stabilization time select register (OSTS)
16-bit timer 00^{Note 3}
Timer counter 00 (TM00)
Undefined
0000H
Capture/compare registers 000, 010 (CR000, CR010)
0000H
Mode control register 00 (TMC00)
00H
Prescaler mode register 00 (PRM00)
00H
Capture/compare control register 00 (CRC00)
00H
Timer output control register 00 (TOC00)
00H
8-bit timer H1
Compare registers (CMP01, CMP11)
00H
Mode register 1 (TMHMD1)
00H
Watchdog timer
Mode register (WDTM)
67H
A/D converter^{Note 3}
Enable register (WDTE)
Conversion result registers (ADCR, ADCRH)
9AH
Undefined
Mode register (ADM)
00H
Analog input channel specification register (ADS)
00H
Notes 1.
2.
3.
Only the contents of PC are undefined while reset signal generation and while the oscillation stabilization
time elapses. The statuses of the other hardware units remain unchanged.
The status after reset is held in the standby mode.
μPD78F920x only
User’s Manual U18172EJ3V0UD
201