HD6417606 RENESAS [Renesas Technology Corp], HD6417606 Datasheet - Page 339

• Manufacturer Part Number: HD6417606
• Manufacturer: RENESAS [Renesas Technology Corp]

13.4.6
HIFEICR is a 32-bit register used to issue interrupts to an external device connected to the HIF
from this LSI. Access to HIFEICR by an external device should be performed with HIFEICR
specified by bits REG5 to REG0 in HIFIDX and the HIFRS pin low.
Bit
31 to 8 —
7
6
5
4
3
2
1
0
Bit
31 to 8 —
Bit Name
IIC6
IIC5
IIC4
IIC3
IIC2
IIC1
IIC0
IIR
Bit Name
HIF External Interrupt Control Register (HIFEICR)
Initial
Value
All 0
0
0
0
0
0
0
0
0
Initial
Value
All 0
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Internal Interrupt Source
These bits specify the source for interrupts generated by
the IIR bit. These bits can be written to from both an
external device and the on-chip CPU. By using these
bits, fast execution of interrupt exception handling is
possible. These bits are completely under software
control, and their values have no effect on the operation
of this LSI.
Internal Interrupt Request
While this bit is 1, an interrupt request (HIFI) is issued to
the on-chip CPU.
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Rev. 4.00 Sep. 13, 2007 Page 313 of 502
Section 13 Host Interface (HIF)
REJ09B0239-0400