Specifications

43
3706C–MICRO–2/11
AT89LP3240/6440
Table 9-3. IE2 – Interrupt Enable 2 Register
IE = B4H Reset Value = xxxx x000B
Not Bit Addressable
– – – ETWI EADC ESPI ECC EGP
Bit76543210
Symbol Function
ETWI Two-Wire Interface Interrupt Enable
EADC ADC Interrupt Enable
ESPI Serial Peripheral Interface Interrupt Enable
ECC Compare/Capture Array Interrupt Enable
EGP General-purpose Interrupt Enable
Table 9-4. IP – Interrupt Priority Register
IP = B8H Reset Value = 0000 0000B
Bit Addressable
IP0D
PC
PT2 PS PT1 PX1 PT0 PX0
Bit76543210
Symbol Function
IP0D Interrupt Priority 0 Disable. Set IP0D to 1 to disable all interrupts with priority level zero. Clear to 0 to enable all interrupts
with priority level zero when EA = 1.
PC Comparator Interrupt Priority Low
PT2 Timer 2 Interrupt Priority Low
PSSerial Port Interrupt Priority Low
PT1 Timer 1 Interrupt Priority Low
PX1 External Interrupt 1 Priority Low
PT0 Timer 0 Interrupt Priority Low
PX0 External Interrupt 0 Priority Low
Table 9-5. IP2 – Interrupt Priority 2 Register
IP = B5H Reset Value = 0xxx x000B
No Bit Addressable
IP2D
– – PTWI PADC
PSPPCCPGP
Bit76543210
Symbol Function
IP2D Interrupt Priority 2 Disable. Set IP2D to 1 to disable all interrupts with priority level two. Clear to 0 to enable all interrupts
with priority level two when EA = 1.
PTWI Two-wire Interface Interrupt Priority Low
PADC ADC Interrupt Priority Low