D75108CW NEC, D75108CW Datasheet - Page 33

• Manufacturer Part Number: D75108CW
• Description: Search -----> UPD75108CW
• Manufacturer: NEC

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Note: Data at data memory addresses 0F8H to 0FDH become undefined when the RESET signal has been input.
*1: PC
2: Power-ON reset: 1
Basic interval timer
Program Counter (PC)
PSW
Stack Pointer (SP)
Data Memory (RAM)
General-Purpose Registers (X,A,H,L,D,E,B,C)
Bank Selector Registers (MBS, RBS)
Serial Interface
Clock Generator Circuit,
Clock Output Circuit
Interrupt
Digital Port
Analog Port
Power-ON Flag (PONF)
Bit Sequential Buffer (BSB0-BSB3)
Timer/Event Counter
(n = 0, 1)
RESET input during operation: undefined
11-8
for PD75104
Carry Flag (CY)
Skip Flags (SK0-SK2)
Interrupt Status Flags (IST0, 1)
Bank Enable Flags (MBE, RBE)
Hardware
Counter (BT)
Mode Register (BTM)
Counter (Tn)
Modulo Register (TMODn)
Mode Register (TMn)
TOEn, TOFn
Shift Register (SIO)
Mode Register (SIOM)
Processor Clock Control Register
(PCC)
Clock Output Mode Register
(CLOM)
Interrupt Request Rlags
(IRQxxx)
Interrupt Enable Flags (IExxx)
Priority Selector Register (IPS)
INT0, 1 Mode Registers
(IM0, IM1)
Output Buffer
Output Latch
I/O Mode Registers
(PMGA, PMGB, PMGC)
PTH00-PTH03 Input Latches
Mode Register (PTHM)
Table 8-1 Hardware Device Status After Reset
RESET input during
standby mode
Lower 4 bits of program
memory address 000H are
set to PC
contents of address 001H
are set to PC
Bit 6 of program memory
address 000H is set in
RBE, and bit 7 is set in
MBE.
Cleared (0)
Retained*
Undefined
Undefined
Undefined
Retained
Retained
Retained
Retained
Reset (0)
12-8
OFF
FFH
0, 0
0, 0
0, 0
,*
0
0
0
0
0
0
0
0
0
0
0
0
0
7-0
1
and
.
2
PD75104, 75106, 75108
Power-ON Reset or RESET
Input during Operation
Lower 4 bits of program
memory address 000H are
set to PC
contents of address 001H
are set to PC
Bit 6 of program memory
address 000H is set in
RBE, and bit 7 is set in
MBE.
1 or undefined*
Cleared (0)
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Undefined
Reset (0)
12-8
FFH
OFF
0, 0
0, 0
0, 0
,*
0
0
0
0
0
0
0
0
0
0
0
0
0
7-0
1
.
and
2
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