Registers
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4.6 EMIF Interrupt Mask Set Register (EIMSR)The EMIF interrupt mask set register (EIMSR) is used to enable the interrupts. If a bit is set to 1, the
corresponding bit in the EMIF interrupt mask register (EIMR) is set and an interrupt is generated when the
associated interrupt condition occurs. If a bit is cleared to 0, the the corresponding bit in EIMR will always
read 0 and no interrupts are generated when the associated interrupt condition occurs. Writing a 1 to the
WRMSETnand ATMSET bits enables each respective interrupt. The EIMSR is shown in Figure 25 and
described in Table 38.
Figure 25. EMIF Interrupt Mask Set Register (EIMSR)
31 16
Reserved
R-0
15 8
Reserved
R-0
76543210
Reserved WRMSET3 WRMSET2 WRMSET1 WRMSET0 Reserved ATMSET
R-0 R/W1S-0 R/W1S-0 R/W1S-0 R/W1S-0 R-0 R/W1S-0
LEGEND: R/W = Read/Write; R = Read only; W1S = Write 1 to set (writing 0 has no effect); -n= value after reset
Table 38. EMIF Interrupt Mask Set Register (EIMSR) Field Descriptions
Bit Field Value Description
31-6 Reserved 0 Reserved. The reserved bit location is always read as 0. If writing to this field, always write the default
value of 0.
5 WRMSET3 Wait Rise Mask Set. This bit enables the wait rise interrupt. Writing a 1 to this bit sets this bit and the
WRMCLR3 bit in the EMIF interrupt mask clear register (EIMCR), and enables the wait rise interrupt. To
clear this bit, a 1 must be written to the WRMCLR3 bit in EIMCR.
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 sets this bit and the WRMCLR3 bit in
EIMCR.
4 WRMSET2 Wait Rise Mask Set. This bit enables the wait rise interrupt. Writing a 1 to this bit sets this bit and the
WRMCLR2 bit in the EMIF interrupt mask clear register (EIMCR), and enables the wait rise interrupt. To
clear this bit, a 1 must be written to the WRMCLR2 bit in EIMCR.
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 sets this bit and the WRMCLR2 bit in
EIMCR.
3 WRMSET1 Wait Rise Mask Set. This bit enables the wait rise interrupt. Writing a 1 to this bit sets this bit and the
WRMCLR1 bit in the EMIF interrupt mask clear register (EIMCR), and enables the wait rise interrupt. To
clear this bit, a 1 must be written to the WRMCLR1 bit in EIMCR.
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 sets this bit and the WRMCLR1 bit in
EIMCR.
2 WRMSET0 Wait Rise Mask Set. This bit enables the wait rise interrupt. Writing a 1 to this bit sets this bit and the
WRMCLR0 bit in the EMIF interrupt mask clear register (EIMCR), and enables the wait rise interrupt. To
clear this bit, a 1 must be written to the WRMCLR0 bit in EIMCR.
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 sets this bit and the WRMCLR0 bit in
EIMCR.
1 Reserved 0 Reserved. The reserved bit location is always read as 0. If writing to this field, always write the default
value of 0.
56 Asynchronous External Memory Interface (EMIF) SPRUEQ7C–February 2010
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