HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 121
HD6433044
Manufacturer Part Number
HD6433044
Description
(HD64 Series) Hitachi Single-Chip Microcomputer
Manufacturer
Hitachi Semiconductor
Datasheet
1.HD6433044.pdf
(867 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
HD6433044A00FV
Manufacturer:
HITACHI/日立
Quantity:
20 000
Company:
Part Number:
HD6433044F16
Manufacturer:
HITACHI
Quantity:
5 530
Company:
Part Number:
HD6433044F16
Manufacturer:
IDT
Quantity:
3 198
Company:
Part Number:
HD6433044F16
Manufacturer:
HITACHI
Quantity:
648
Part Number:
HD6433044F16A00
Manufacturer:
HITACHI/日立
Quantity:
20 000
Company:
Part Number:
HD6433044F18
Manufacturer:
HITACHI
Quantity:
5 530
Part Number:
HD6433044F18
Manufacturer:
HITACHI/日立
Quantity:
20 000
Company:
Part Number:
HD6433044F18M08
Manufacturer:
TI
Quantity:
403
Part Number:
HD6433044F18M08
Manufacturer:
HITACHI/日立
Quantity:
20 000
- Current page: 121 of 867
- Download datasheet (3Mb)
5.5 Usage Notes
5.5.1 Contention between Interrupt and Interrupt-Disabling Instruction
When an instruction clears an interrupt enable bit to 0 to disable the interrupt, the interrupt is not
disabled until after execution of the instruction is completed. If an interrupt occurs while a BCLR,
MOV, or other instruction is being executed to clear its interrupt enable bit to 0, at the instant
when execution of the instruction ends the interrupt is still enabled, so its interrupt exception
handling is carried out. If a higher-priority interrupt is also requested, however, interrupt exception
handling for the higher-priority interrupt is carried out, and the lower-priority interrupt is ignored.
This also applies to the clearing of an interrupt flag.
Figure 5-8 shows an example in which an IMIEA bit is cleared to 0 in TIER of the ITU.
This type of contention will not occur if the interrupt is masked when the interrupt enable bit or
flag is cleared to 0.
ø
Internal
address bus
Internal
write signal
IMIEA
IMIA
IMFA interrupt
signal
Figure 5-8 Contention between Interrupt and Interrupt-Disabling Instruction
TIER write cycle by CPU
TIER address
107
IMIA exception handling
Related parts for HD6433044
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
HM628128LFP-10Hitachi Semiconductor [131072-word x 8-bit High Speed CMOS Static RAM]
Manufacturer:
HITACHI
Datasheet:
Part Number:
Description:
Silicon N-Channel Junction FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel Junction FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N-Channel MOS FET
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
GaAs HEMT
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET Low Frequency Power Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Switching
Manufacturer:
Hitachi Semiconductor
Datasheet:
Part Number:
Description:
Silicon N Channel MOS FET High Speed Switching
Manufacturer:
Hitachi Semiconductor
Datasheet: