NEC 78K0 User Manual page 465

Table 22-1. Hardware Statuses After Reset Acknowledgment (1/3)
Program counter (PC)
Stack pointer (SP)
Program status word (PSW)
RAM Data memory
General-purpose registers
Port registers (P0 to P7, P12 to P14) (output latches)
Port mode registers (PM0, PM1, PM3 to PM7, PM12, PM14)
Pull-up resistor option registers (PU0, PU1, PU3 to PU7, PU12, PU14)
Input switch control register (ISC)
Internal memory size switching register (IMS)
Internal expansion RAM size switching register (IXS)
Memory expansion mode register (MEM)
Memory expansion wait setting register (MM)
Processor clock control register (PCC)
Ring-OSC mode register (RCM)
Main clock mode register (MCM)
Main OSC control register (MOC)
Oscillation stabilization time select register (OSTS)
Oscillation stabilization time counter status register (OSTC)
16-bit timer/event Timer counters 00, 01 (TM00, TM01)
Note 3
counters 00, 01
Capture/compare registers 000, 010, 001, 011 (CR000, CR010, CR001, CR011)
Mode control registers 00, 01 (TMC00, TMC01)
Prescaler mode registers 00, 01 (PRM00, PRM01)
Capture/compare control registers 00, 01 (CRC00, CRC01)
Timer output control registers 00, 01 (TOC00, TOC01)
8-bit timer/event Timer counters 50, 51 (TM50, TM51)
counters 50, 51
Compare registers 50, 51 (CR50, CR51)
Timer clock selection registers 50, 51 (TCL50, TCL51)
Mode control registers 50, 51 (TMC50, TMC51)
8-bit timers H0, H1 Compare registers 00, 10, 01, 11 (CMP00, CMP10, CMP01, CMP11)
Mode registers (TMHMD0, TMHMD1)
Carrier control register 1 (TMCYC1)
Watch timer Operation mode register (WTM)
Clock output/buzzer Clock output selection register (CKS)
output controller
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
4. 8-bit timer H1 only.
CHAPTER 22 RESET FUNCTION
Hardware
*
Note 4
µ
PD780146, 780148, and 78F0148.
User's Manual U15947EJ2V0UD
Status After Reset
Note 1
Acknowledgment
The contents of the
reset vector table
(0000H, 0001H) are
set.
Undefined
02H
Note 2
Undefined
Note 2
Undefined
00H (undefined only
for P2)
FFH
00H
00H
CFH
0CH
00H
10H
00H
00H
00H
00H
05H
00H
0000H
0000H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
00H
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