TMPR4937XBG-300 Toshiba, TMPR4937XBG-300 Datasheet - Page 454

• Manufacturer Part Number: TMPR4937XBG-300
• Manufacturer: Toshiba

Specifications of TMPR4937XBG-300

• Family Name: TX49
• Device Core Size: 64b
• Frequency (max): 300MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.5V
• Operating Supply Voltage (max): 1.6V
• Operating Supply Voltage (min): 1.4V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 484
• Package Type: BGA
• Lead Free Status / Rohs Status: Compliant

15.3.7
IRRCNT.EXTPOL
IRRCNT.INTPOL
IRMASK[15]
Interrupt requests
the TX49/H3 core by using a 16-bit interrupt request flag register. REQ[1]* signals are used as interrupt
output signals. Consequently, external interrupt requests can only be used when in the PCI External
Arbiter mode. Also, internal interrupt requests are assigned to interrupt number 13 of the Interrupt
Controller (IRC).
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•
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that perform an OR operation on all bits.
can select whether the external interrupt supply signal is open drain output or totem pole output.
IRFLAG[15]
IRPOL[15]
It is possible to make interrupt requests to external devices and interrupt requests (IRC interrupts) to
The following six registers set the interrupts.
The following formulas derive the interrupt generation conditions:
In the above formulas, “^” indicates Exclusive OR operations and “|” indicates reduction operators
Also, the External Interrupt OD Control bit (IRRCNT.OD) of the Interrupt Request Control Register
Interrupt Request Flag Register (IRFLAG0, IRFLAG1)
Interrupt Request Polarity Control Register (IRPOL)
Interrupt Request Mask Register (IRMASKINT, IRMASKEXT)
Interrupt Request Control Register (IRRCNT)
Internal interrupt request =
External interrupt request =
(|((IRFLAG[15:0] ^ IRPOL[15:0]) & IRMASKINT[15:0]))^ IRRCNT.INTPOL
(|((IRFLAG[15:0] ^ IRPOL[15:0] ) & IRMASKEXT[15:0]))^ IRRCNT.EXTPOL
Figure 15.3.1 External Interrupt Request Logic
15-8
Chapter 15 Interrupt Controller
Internal Interrupt
Request
(0: Request present)
External Interrupt Request