AN2514 Freescale Semiconductor / Motorola, AN2514 Datasheet - Page 10

• Manufacturer Part Number: AN2514
• Description: 3-Phase Sine Wave Generator TPU Function Set
• Manufacturer: Freescale Semiconductor / Motorola

AN2514/D
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TPU function 3Sin_bottom generates an interrupt when the current values of
Ampl, dTheta (optionally also Theta), T and prescaler have been read by the
TPU and indicates to the CPU that it can write new variables. The CPU
program can either wait for this interrupt to occur, or poll the LD_OK parameter
to check it has cleared. The interrupt is generated at each reload by one of the
bottom channels. The top channels do not generate any interrupts.
3-Phase Sine Wave Generator TPU Function Set (3Sin)
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Channel Function Select
Channel Priority
Host Service Bits (HSR)
Host Sequence Bits (HSQ)
Channel Interrupt Enable
Channel Interrupt Status
Name
Table 6. 3Sin_bottom Control Bits
3Sin_bottom function number
00 – Channel Disabled
01 – Low Priority
10 – Middle Priority
11 – High Priority
00 – No Host Service Request
01 – Not used
10 – Initialization
11 – Stop
0 – Channel Interrupt Disabled
1 – Channel Interrupt Enabled
0 – Interrupt Not Asserted
1 – Interrupt Asserted
xx – Not used
(Assigned during assembly the
DPTRAM code from library TPU
functions)
Options
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