Texas Instruments TMS320C6745 DSP - EMIFA Interrupt Mask Clear Register (INTMSKCLR); EMIFA Interrupt Mask Clear Register (INTMSKCLR) Field Descriptions

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SPRUH91D–March 2013–Revised September 2016
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External Memory Interface A (EMIFA)
18.4.11 EMIFA Interrupt Mask Clear Register (INTMSKCLR)
The EMIFA interrupt mask clear register (INTMSKCLR) is used to disable the Asynchronous Timeout
Interrupt. If read as 1, the AT_MASKED bit in the EMIFA interrupt masked register (INTMSK) will be set
and an interrupt will be generated when an Asynchronous Timeout occurs. If read as 0, the AT_MASKED
bit will always read 0 and no interrupt will be generated when an Asynchronous Timeout occurs. Writing a
1 to the AT_MASK_CLR bit disables the Asynchronous Timeout Interrupt. The EMIFA on some devices
does not have the EMA_WAIT pin, therefore, these registers and fields are reserved on those devices.
The INTMSKCLR is shown in Figure 18-41 and described in Table 18-59.
Figure 18-41. EMIFA Interrupt Mask Clear Register (INTMSKCLR)
31 16
Reserved
R-0
15 3 2 1 0
Reserved WR_MASK_CLR Reserved AT_MASK_CLR
R-0 R/W-0 R-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 18-59. EMIFA Interrupt Mask Clear Register (INTMSKCLR) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reserved. The reserved bit location is always read as 0. If writing to this field, always write the
default value of 0.
2 WR_MASK_CLR Wait Rise Mask Clear. This bit determines whether or not the wait rise interrupt is enabled. Writing
a 1 to this bit clears this bit, clears the WR_MASK_SET bit in the EMIFA interrupt mask set register
(INTMSKSET), and disables the wait rise interrupt. To set this bit, a 1 must be written to the
WR_MASK_SET bit in INTMSKSET.
0 Indicates that the wait rise interrupt is disabled. Writing a 0 has no effect.
1 Indicates that the wait rise interrupt is enabled. Writing a 1 clears this bit and the WR_MASK_SET
bit in the EMIFA interrupt mask set register (INTMSKSET).
1 LT_MASK_CLR Line trap Mask Clear. This bit determines whether or not the line trap interrupt is enabled. Writing a
1 to this bit clears this bit, clears the LT_MASK_SET bit in the EMIFA interrupt mask set register
(INTMSKSET), and disables the line trap interrupt. To set this bit, a 1 must be written to the
LT_MASK_SET bit in INTMSKSET.
0 Indicates that the line trap interrupt is disabled. Writing a 0 has no effect.
1 Indicates that the line trap interrupt is enabled. Writing a 1 clears this bit and the LT_MASK_SET bit
in the EMIFA interrupt mask set register (INTMSKSET).
0 AT_MASK_CLR Asynchronous Timeout Mask Clear. This bit determines whether or not the Asynchronous Timeout
Interrupt is enabled. Writing a 1 to this bit clears this bit, clears the AT_MASK_SET bit in the EMIFA
interrupt mask set register (INTMSKSET), and disables the Asynchronous Timeout Interrupt. To set
this bit, a 1 must be written to the AT_MASK_SET bit of the EMIFA interrupt mask set register
(INTMSKSET).
0 Indicates that the Asynchronous Timeout Interrupt is disabled. Writing a 0 has no effect.
1 Indicates that the Asynchronous Timeout Interrupt is enabled. Writing a 1 clears this bit and the
AT_MASK_SET bit in the EMIFA interrupt mask set register (INTMSKSET).