TMPR4925 datasheet(458/590 Pages) TOSHIBA

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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

15.4.1

0xF600

IRDEN

Interrupt Detection Enable Register

15.4.2

0xF604

IRDM0

Interrupt Detection Mode Register 0

15.4.3

0xF608

IRDM1

Interrupt Detection Mode Register 1

15.4.4

0xF610

IRLVL0

Interrupt Level Register 0

15.4.5

0xF614

IRLVL1

Interrupt Level Register 1

15.4.6

0xF618

IRLVL2

Interrupt Level Register 2

15.4.7

0xF61C

IRLVL3

Interrupt Level Register 3

15.4.8

0xF620

IRLVL4

Interrupt Level Register 4

15.4.9

0xF624

IRLVL5

Interrupt Level Register 5

15.4.10

0xF628

IRLVL6

Interrupt Level Register 6

15.4.11

0xF62C

IRLVL7

Interrupt Level Register 7

15.4.12

0xF640

IRMSK

Interrupt Mask Register

15.4.13

0xF660

IREDC

Interrupt Edge Detection Clear Register

15.4.14

0xF680

IRPND

Interrupt Pending Register

15.4.15

0xF6A0

IRCS

Interrupt Current Status Register

15.4.16

0xF510

IRFLAG0

Interrupt Request Flag Register 0

15.4.17

0xF514

IRFLAG1

Interrupt Request Flag Register 1

15.4.18

0xF518

IRPOL

Interrupt Request Polarity Control Register

15.4.19

0xF51C

IRRCNT

Interrupt Request Control Register

15.4.20

0xF520

IRMASKINT

Interrupt Request Internal Interrupt Mask Register

15.4.21

0xF524

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

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