HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 205

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

Bits 15 to 8—IRQ Sense Select Bits (IRQ31S–IRQ00S): These bits set the IRQ detection mode
for IRL3–IRL0.
Bits 15–8:
IRQn1S
0
1
Note: n = 0 to 3
Bits 7 to 4—IRL Pin Status Bits (IRL3PS–IRL0PS): These bits indicate the IRL3–IRL0 pin status.
The IRL3–IRL0 pin levels can be ascertained by reading these bits. These bits cannot be modified.
Bits 7–4: IRLnPS
0
1
Note: n = 0 to 3
Bits 3 to 0—IRQ3 to IRQ0 Flags (IRQ3F–IRQ0F): These bits indicate the IRQ3–IRQ0 interrupt
request status.
Bits 3–0:
IRQ3F–IRQ0F
0
1
Note: n = 0 to 3
Bits 15–8:
IRQn0S
0
1
0
1
Detection Setting
Level detection
Edge detection
Level detection
Edge detection
Description
Low level is being input to pin IRLn
High level is being input to pin IRLn
Description
Low-level detection
Rising-edge detection
Falling-edge detection
Both-edge detection
Description
There is no IRQn interrupt request
[Clearing condition]
When IRLn input is high
An IRQn interrupt request has not been detected
[Clearing conditions]
There is an IRQn interrupt request
[Setting condition]
When IRLn input is low
An IRQn interrupt request has been detected
[Setting condition]
When an IRLn input edge is detected
When 0 is written to IRQnF after reading IRQnF = 1
When an IRQn interrupt is accepted
(Initial value)
(Initial value)
(Initial value)
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