Toshiba TMPR4925, Руководство пользователя

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Chapter 15 Interrupt Controller
15-8
Figure 15.3.1 External Interrupt Request Logic
There are two flag registers: Flag Register 0 (IRFLAG0), and Flag Register 1 (IRFLAG1). These
registers have two different Write methods. Accordingly, Writes to one register are reflects in the other.
Either “0” or “1” can be written to Flag Register 0
In the case of Flag Register 1 however, “1” can be written from the TX49/H2 core, but “0” cannot be
written. On the other hand, bits that wrote “1” are cleared to “0” in the case of access from a device
other than the TX49/H2 core (access from an external PCI device for example). The bit value at this
time will not change even if “0” is written. This register sends interrupt notification from the TX49/H2
core to external devices. External devices can be used in applications that clear these interrupt
notifications.
15.4 Registers
Table 15.4.1 Interrupt Control Registers
Reference Address Bit Width Register Register Name
15.4.1 0xF600 32 IRDEN Interrupt Detection Enable Register
15.4.2 0xF604 32 IRDM0 Interrupt Detection Mode Register 0
15.4.3 0xF608 32 IRDM1 Interrupt Detection Mode Register 1
15.4.4 0xF610 32 IRLVL0 Interrupt Level Register 0
15.4.5 0xF614 32 IRLVL1 Interrupt Level Register 1
15.4.6 0xF618 32 IRLVL2 Interrupt Level Register 2
15.4.7 0xF61C 32 IRLVL3 Interrupt Level Register 3
15.4.8 0xF620 32 IRLVL4 Interrupt Level Register 4
15.4.9 0xF624 32 IRLVL5 Interrupt Level Register 5
15.4.10 0xF628 32 IRLVL6 Interrupt Level Register 6
15.4.11 0xF62C 32 IRLVL7 Interrupt Level Register 7
15.4.12 0xF640 32 IRMSK Interrupt Mask Register
15.4.13 0xF660 32 IREDC Interrupt Edge Detection Clear Register
15.4.14 0xF680 32 IRPND Interrupt Pending Register
15.4.15 0xF6A0 32 IRCS Interrupt Current Status Register
15.4.16 0xF510 32 IRFLAG0 Interrupt Request Flag Register 0
15.4.17 0xF514 32 IRFLAG1 Interrupt Request Flag Register 1
15.4.18 0xF518 32 IRPOL Interrupt Request Polarity Control Register
15.4.19 0xF51C 32 IRRCNT Interrupt Request Control Register
15.4.20 0xF520 32 IRMASKINT Interrupt Request Internal Interrupt Mask Register
15.4.21 0xF524 32 IRMASKEXT Interrupt Request External Interrupt Mask Register
IRFLAG[31]
IRPOL[31]
IRMASK[31]
IRRCNT.EXTPOL
Internal Interrupt
Request
(0: Request present)
External Interrupt Request
IRRCNT.INTPOL