Section 5
Interrupt Controller
Rev. 1.00 Apr. 28, 2008 Page 107 of 994
REJ09B0452-0100
When using the
IRQ6
pin as the IRQ6 interrupt input pin, the KMIMR6 bit must be cleared
to 0. When using the
IRQ7
pin as the IRQ7 interrupt input pin, the KMIMR15 to KMIMR8
bits must all be set to 1. If even one of these bits is cleared to 0, the IRQ7 interrupt input
from the
IRQ7
pin is ignored.
•
Extended vector mode (EIVS = 1 in SYSCR3)
Interrupts KIN15 to KIN8 and KIN7 to KIN0, each form a group. The interrupt exception
handling for an interrupt request from the same group is started at the same vector address.
Interrupt requests are generated on the falling edge of pins
KIN15
to
KIN0
.
Interrupt requests KIN15 to KIN0 can be masked by using KMIMRA and KMIMR.
The status of interrupt requests KIN15 to KIN0 are not indicated.
An IRQ6 interrupt is enabled only by input to the
ExIRQ6
pin. The
IRQ6
pin is only
available for a KIN interrupt input, and functions as the
KIN6
pin. The initial value of the
KMIMR6 bit is 1. For the IRQ7 interrupt, either the
IRQ7
pin or
ExIRQ7
pin can be
selected as the input pin using the ISS7 bit. The IRQ7 interrupt is not affected by the
settings of bits KMIMR15 to KMIMR8. The detection of interrupts KIN15 to KIN0 does
not depend on whether the relevant pin has been set for input or output. Therefore, when a
pin is used as an external interrupt input pin, clear the DDR bit of the corresponding port to
0 so it is not used as an I/O pin for another function.
(4) WUE15 to WUE8 Interrupts
Interrupt requests WUE15 to WUE8 can be configured regardless of the setting of the EIVS bit in
system control register 3 (SYSCR3).
A block diagram of interrupts WUE15 to WUE8 is shown in figure 5.5.
S
R
Q
WUEMRn
WUEn
input
WUEn interrupt request
Clear signal
Rising/falling-edge
selection and interrupt
enable/disable circuit
n = 15 to 8
Figure 5.5 Block Diagram of Interrupts WUE15 to WUE8
Summary of Contents for H8S/2100 Series
Page 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Page 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Page 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Page 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Page 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Page 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Page 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Page 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Page 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Page 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Page 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Page 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Page 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
Page 1023: ......
Page 1024: ...H8S 2117R Group Hardware Manual...