Renesas H8S/2100 Series, Hardware Manual

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Section 20 LPC Interface (LPC)
Rev. 1.00 Apr. 28, 2008 Page 676 of 994
REJ09B0452-0100
Table 20.10 HIRQ Setting and Clearing Conditions when LPC Channels are Used
Host Interrupt Setting Condition Clearing Condition
HIRQ1 Internal CPU writes to ODR1, then reads 0
from bit IRQ1E1 and writes 1 Internal CPU writes 0 to bit IRQ1E1,
or host reads ODR1
HIRQ12 Internal CPU writes to ODR1, then reads 0
from bit IRQ12E1 and writes 1 Internal CPU writes 0 to bit
IRQ12E1, or host reads ODR1
SMI
(IEDIR2 = 0,
IEDIR3 = 0, or
IEDIR4 = 0) Internal CPU
•
writes to ODR2, then reads 0 from bit
SMIE2 and writes 1
•
writes to ODR3, then reads 0 from bit
SMIE3A and writes 1
•
writes to TWR15, then reads 0 from bit
SMIE3B and writes 1
•
writes to ODR4, then reads 0 from bit
SMIE4 and writes 1
Internal CPU
•
writes 0 to bit SMIE2, or host
reads ODR2
•
writes 0 to bit SMIE3A, or host
reads ODR3
•
writes 0 to bit SMIE3B, or host
reads TWR15
•
writes 0 to bit SMIE4, or host
reads ODR4
SMI
(IEDIR2 = 1,
IEDIR3 = 1, or
IEDIR4 = 1) Internal CPU
•
reads 0 from bit SMIE2, then writes 1
•
reads 0 from bit SMIE3A, then writes 1
•
reads 0 from bit SMIE3B, then writes 1
•
reads 0 from bit SMIE4, then writes 1
Internal CPU
•
writes 0 to bit SMIE2
•
writes 0 to bit SMIE3A
•
writes 0 to bit SMIE3B
•
writes 0 to bit SMIE4
HIRQi
(i = 6, 9, 10, 11)
(IEDIR2 = 0,
IEDIR3 = 0, or
IEDIR4 = 0) Internal CPU
•
writes to ODR2, then reads 0 from bit
IRQiE2 and writes 1
•
writes to ODR3, then reads 0 from bit
IRQiE3 and writes 1
•
writes to ODR4, then reads 0 from bit
IRQiE4 and writes 1
Internal CPU
•
writes 0 to bit IRQiE2, or host
reads ODR2
•
CPU writes 0 to bit IRQiE3, or
host reads ODR3
•
CPU writes 0 to bit IRQiE4, or
host reads ODR4
HIRQi
(i = 6, 9, 10, 11)
(IEDIR2 = 1,
IEDIR3 = 1, or
IEDIR4 = 1) Internal CPU
•
reads 0 from bit IRQiE2, then writes 1
•
reads 0 from bit IRQiE3, then writes 1
•
reads 0 from bit IRQiE4, then writes 1
Internal CPU
•
writes 0 to bit IRQiE2
•
writes 0 to bit IRQiE3
•
writes 0 to bit IRQiE4