CHAPTER 20 RESET FUNCTION
User’s Manual U16899EJ2V0UD
393
Table 20-1. Hardware Statuses After Reset Acknowledgment (1/3)
Hardware
Status After Reset
Acknowledgment
Note 1
Program counter (PC)
The contents of the
reset vector table
(0000H, 0001H) are
set.
Stack pointer (SP)
Undefined
Program status word (PSW)
02H
Data memory
Undefined
Note 2
RAM
General-purpose registers
Undefined
Note 2
Port registers (P0 to P7, P12 to P14) (output latches)
00H (undefined only
for P2)
Port mode registers (PM0, PM1, PM3 to PM7, PM12, PM14)
FFH
Pull-up resistor option registers (PU0, PU1, PU3 to PU5, PU7, PU12, PU14)
00H
Input switch control register (ISC)
00H
Internal memory size switching register (IMS)
CFH
Internal expansion RAM size switching register (IXS)
0CH
Processor clock control register (PCC)
00H
Ring-OSC mode register (RCM)
00H
Main clock mode register (MCM)
00H
Main OSC control register (MOC)
00H
Oscillation stabilization time select register (OSTS)
05H
Oscillation stabilization time counter status register (OSTC)
00H
Timer counters 00, 01 (TM00, TM01)
0000H
Capture/compare registers 000, 010, 001, 011 (CR000, CR010, CR001, CR011)
0000H
Mode control registers 00, 01 (TMC00, TMC01)
00H
Prescaler mode registers 00, 01 (PRM00, PRM01)
00H
Capture/compare control registers 00, 01 (CRC00, CRC01)
00H
16-bit timer/event
counters 00, 01
Note 3
Timer output control registers 00, 01 (TOC00, TOC01)
00H
Timer counters 50, 51 (TM50, TM51)
00H
Compare registers 50, 51 (CR50, CR51)
00H
Timer clock selection registers 50, 51 (TCL50, TCL51)
00H
8-bit timer/event
counters 50, 51
Mode control registers 50, 51 (TMC50, TMC51)
00H
Compare registers 00, 10, 01, 11 (CMP00, CMP10, CMP01, CMP11)
00H
Mode registers (TMHMD0, TMHMD1)
00H
8-bit timers H0, H1
Carrier control register 1 (TMCYC1)
Note 4
00H
Watch timer
Operation mode register (WTM)
00H
Notes 1. During reset input or oscillation stabilization time wait, only the PC contents among the hardware statuses
become undefined. All other hardware statuses remain unchanged after reset.
2. When a reset is executed in the standby mode, the pre-reset status is held even after reset.
3. 16-bit timer/event counter 01 is available only for the
µ
PD78F0133H, 78F0134H, 78F0136H, 78F0138H,
and 78F0138HD.
4. 8-bit timer H1 only.