cop8cce9imt9 National Semiconductor Corporation, cop8cce9imt9 Datasheet - Page 22

• Manufacturer Part Number: cop8cce9imt9
• Description: 8-bit Cmos Flash Microcontroller With 8k Memory, Virtual Eeprom, 10-bit A/d And Brownout Reset
• Manufacturer: National Semiconductor Corporation

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10.0 Functional Description
10.7 RESET
The device is initialized when the RESET pin is pulled low or
the On-chip Brownout Reset is activated.
The following occurs upon initialization:
(Continued)
Port A: TRI-STATE (High Impedance Input)
Port B: TRI-STATE (High Impedance Input)
Port H: TRI-STATE (High Impedance Input)
Port L: TRI-STATE (High Impedance Input)
PC: CLEARED to 0000
PSW, CNTRL and ICNTRL registers: CLEARED
SIOR:
T2CNTRL: CLEARED
Port G: TRI-STATE (High Impedance Input). Exceptions: If
Watchdog is enabled, then G1 is Watchdog output. G0
and G2 have their weak pull-up enabled during RESET.
UNAFFECTED after RESET with power already applied
RANDOM after RESET at power-on
FIGURE 8. Reset Logic
20022511
22
HSTCR: CLEARED
ITMR: Cleared except Bit 6 (HSON) = 1
Accumulator, Timer 1 and Timer 2:
WKEN, WKEDG: CLEARED
WKPND: RANDOM
SP (Stack Pointer):
B and X Pointers:
S Register: CLEARED
RAM:
USART:
ANALOG TO DIGITAL CONVERTER:
ISP CONTROL:
RANDOM after RESET
Initialized to RAM address 06F Hex
UNAFFECTED after RESET with power already applied
RANDOM after RESET at power-on
UNAFFECTED after RESET with power already applied
RANDOM after RESET at power-on
PSR, ENU, ENUR, ENUI: Cleared except the TBMT bit
which is set to one.
ENAD: CLEARED
ADRSTH: RANDOM
ADRSTL: RANDOM
ISPADLO: CLEARED
ISPADHI: CLEARED
PGMTIM: PRESET TO VALUE FOR 10 MHz CKI