Cortex-A8 Technical Reference Manual - ARM Information Center

15.6.4 CTI Application Trigger Clear Register, CTIAPPCLEAR
Cross Trigger Interface
CTIAPPCLEAR is a read/write register. A write to this register clears a channel event,
corresponding to the bit written to.
Figure 15-7 shows the bit arrangement of the CTIAPPCLEAR Register.
31 4 3 0
Figure 15-7 CTI Application Trigger Clear Register format
Table 15-7 shows how the bit values correspond with the CTIAPPCLEAR Register functions.
15.6.5 CTI Application Pulse Register, CTIAPPPULSE
Reserved APPCLEAR
Table 15-7 CTI Application Trigger Clear Register bit functions
Bits Field Function
[31:4] - Reserved. RAZ, SBZ.
[3:0] APPCLEAR Clears corresponding bits in the CTIAPPSET Register:
0 = no effect
1 = application trigger disabled in the CTIAPPSET Register.
There is one bit of the register for each channel.
CTIAPPPULSE is a write-only register. A write to this register generates a channel event pulse,
one CTICLK period, corresponding to the bit written to. The pulse external to the CTI can be
extended to multi-cycle by the handshaking interface circuits. This register clears itself
immediately, so it can be repeatedly written to without software having to clear it.
Figure 15-8 shows the bit arrangement of the CTIAPPPULSE Register.
31 4 3 0
Reserved APPULSE
Figure 15-8 CTI Application Pulse Register format
Table 15-8 shows how the bit values correspond with the CTIAPPPULSE Register functions.
Bits Field Function
[31:4] - Reserved, SBZ.
Table 15-8 CTI Application Pulse Register bit functions
[3:0] APPULSE Setting a bit HIGH generates a channel event pulse for the selected channel.
For write:
0 = no effect
1 = channel event pulse generated for one CTICLK period.
There is one bit of the register for each channel.
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