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Section 23 CD-ROM Decoder
Page 1238 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
23.3.49 Interrupt Flag Register (INTHOLD)
The interrupt flag register (INTHOLD) consists of various interrupt flags.
76543210
00000000
R/W R/W R/W R/W R/W R/W R/W R/W
Bit:
Initial value:
R/W:
ISEC ITARG ISY IERR IBUF IREADY
--
Bit Bit Name
Initial
Value
R/W Description
7 ISEC 0 R/W ISEC Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
6 ITARG 0 R/W ITARG Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
5 ISY 0 R/W ISY Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
4 IERR 0 R/W IERR Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
3 IBUF 0 R/W IBUF Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
2 IREADY 0 R/W IREADY Interrupt Flag
Writing 0 to this bit is only possible after 1 has been
read from it.
1, 0 All 0 R/W Reserved
These bits are always read as 0. The write value should
always be 0.