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Instruction Set
1127
SPNU563A–March 2018
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Copyright © 2018, Texas Instruments Incorporated
High-End Timer (N2HET) Module
23.6.3.23 WCAP (Software Capture Word)
Syntax WCAP {
[brk={OFF | ON}]
[next={label | 9-bit unsigned integer}]
[reqnum={3-bit unsigned integer}
[request={NOREQ | GENREQ | QUIET}]
[hr_lr={HIGH | LOW}]
[control={OFF | ON}]
[prv={OFF | ON}]
[cond_addr={label | 9-bit unsigned integer}]
pin ={pin number}
event={NOCOND | FALL | RISE | BOTH}
reg={A | B | R | S | T | NONE}
[irq={OFF | ON}]
[data={25-bit unsigned integer]
[hr_data={7-bit unsigned integer}]
}
Figure 23-186. WCAP Program Field (P31:P0)
31 26 25 23 22 21 13 12 9 8 7 0
0 Request
Number
BRK Next program address 1011 hr_lr Reserved
6 3 1 9 4 1 8
Figure 23-187. WCAP Control Field (C31:C0)
31 29 28 27 26 25 24 22 21 16
Reserved Request type Control Prv. Reserved Conditional address
3 2 1 1 3 9
15 13 12 8 7 6 5 4 3 2 1 0
Conditional address Pin select Ext
Reg
Capture
condition
Reserved Register select Int.
ena
9 5 1 2 2 2 1
Figure 23-188. WCAP Data Field (D31:D0)
31 7 6 0
Data HR Data
25 7
Cycles One
Register modified None
Description This instruction captures the selected register into the data field if the specified
capture condition is true on the selected pin. This instruction can be used with
all pins.
If the hr_lr bit is reset, the WCAP instruction will capture an HR time stamp
into the data field on the selected edge condition. If the hr_lr bit is set, the HR
capture is ignored.
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