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GEN module registers
72
NS7520 Hardware Reference, Rev. D 03/2006
D28 R/W TPRE 0 Timer prescaler
0 Disable 9-bit prescaler
1 Enable 9-bit prescaler
Determines whether the 9-bit prescaler will be
used in calculating the TIMEOUT parameter. The
prescaler allows for longer TIMEOUT values.
TPRE affects TIMEOUT only when F
XTALE
is used
as a time source.
D27 R/W TCLK 0 Timer clock source
0Use F
XTALE
as timer clock source
1Use F
SYSCLK
as timer clock source
Selects the reference clock for the timer module.
D26:00 R/W ITC 0 Initial timer count
Defines the TIMEOUT parameter for interrupt
frequency. The TIMEOUT period is a function of
the F
XTALE.
Bits Access Mnemonic Reset Description
Table 27: Timer Control registers bit definition