DSP56309EVM Freescale Semiconductor, DSP56309EVM Datasheet - Page 210

• Manufacturer Part Number: DSP56309EVM
• Description: KIT EVALUATION FOR XC56309
• Manufacturer: Freescale Semiconductor
• Type: DSPr

Specifications of DSP56309EVM

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Description/function: Audio DSPs
• Product: Audio Modules
• For Use With/related Products: DSP56309
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Triple Timer Module
9.3.4 Watchdog Modes
The following watchdog timer modes are provided:
9-18
Mode 7 (internal clock): TRM = 0
NOTE: On overflow, TCR is loaded with the value of TLR.
N = write preload
M = write compare
Watchdog Pulse
Watchdog Toggle
TE
Clock
(CLK/2 or prescale CLK)
TLR
TCPR
TCF (Compare Interrupt if TCIE = 1)
Counter (TCR)
TIO pin (INV = 0)
TIO pin (INV = 1)
TCF (Overflow Interrupt if TDIE = 1)
Figure 9-17. Pulse Width Modulation Toggle Mode, TRM = 0
N
M
0
Pulse width
DSP56309 User’s Manual, Rev. 1
first event
N
Period
M
Period = $FFFFFF - TLR + 1
Duty cycle = ($FFFFFF - TCPR)
Ensure that TCPR > TLR for correct functionality
M + 1
0
Freescale Semiconductor
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