h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 677

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 18B.8 summarizes the methods of setting and clearing these bits, and figure 18B.8 shows
the processing flowchart.
Table 18B.8 HIRQ Setting and Clearing Conditions
Host Interrupt
HIRQ1
(independent
from IEDIR)
HIRQ12
(independent
from IEDIR)
SMI
(IEDIR = 0)
SMI
(IEDIR = 1)
HIRQi
(i = 6, 9, 10, 11)
(IEDIR = 0)
HIRQi
(i = 6, 9, 10, 11)
(IEDIR = 1)
Setting Condition
Internal CPU writes to ODR1, then
reads 0 from bit IRQ1E1 and writes 1
Internal CPU writes to ODR1, then
reads 0 from bit IRQ12E1 and writes 1
Internal CPU
• writes to ODR2, then reads 0 from bit
• writes to ODR3, then reads 0 from bit
• writes to TWR15, then reads 0 from
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
Internal CPU
• writes to ODR2, then reads 0 from bit
• writes to ODR3, then reads 0 from bit
Internal CPU
• reads 0 from bit IRQIE2, then writes 1
• reads 0 from bit IRQIE3, then writes 1
SMIE2 and writes 1
SMIE3A and writes 1
bit SMIE3B and writes 1
IRQIE2 and writes 1
IRQIE3 and writes 1
Section 18B Host Interface LPC Interface (LPC)
Rev. 3.00 Jan 18, 2006 page 649 of 1044
Clearing Condition
Internal CPU writes 0 in bit IRQ1E1,
or host reads ODR1
or host reads ODR1
• Internal CPU writes 0 in bit SMIE2,
• Internal CPU writes 0 in bit
• Internal CPU writes 0 in bit
• Internal CPU writes 0 in bit SMIE2
• Internal CPU writes 0 in bit SMIE3A
• Internal CPU writes 0 in bit SMIE3B
• Internal CPU writes 0 in bit IRQIE2,
• Internal CPU writes 0 in bit IRQIE3,
• Internal CPU writes 0 in bit IRQIE2
• Internal CPU writes 0 in bit IRQIE3
Internal CPU writes 0 in bit IRQ12E1,
or host reads ODR2
SMIE3A, or host reads ODR3
SMIE3B, or host reads TWR15
or host reads ODR2
or host reads ODR3
REJ09B0280-0300