Digi Rabbit 5000, User Manual

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168 Rabbit 5000 Microprocessor User’s Manual
16.4 Register Descriptions
Timer C Control/Status Register (TCCSR) (Address = 0x0500)
Bit(s) Value Description
7:2 These bits are always read as zero.
1 0 Timer C divider has not reached its maximum value.
(Read-
only)
1
Timer C divider has reached its maximum value. This status bit is cleared by the
read of this register, as is the Timer C interrupt.
0 0 The clock input for Timer C is disabled.
1 The clock input for Timer C is enabled.
Timer C Control Register (TCCR) (Address = 0x0501)
Bit(s) Value Description
7:4 These bits are reserved and should be written with zero.
3:2 00 Timer C clocked by the peripheral clock divided by 2.
01 Timer C clocked by the output of Timer A1.
10 Timer C clocked by the peripheral clock divided by 16.
11 Timer C clocked by the peripheral clock divided by 16.
1:0 00 Timer C interrupts are disabled.
01 Timer C interrupt uses Interrupt Priority 1.
10 Timer C interrupt uses Interrupt Priority 2.
11 Timer C interrupt uses Interrupt Priority 3.
Timer C Divider Low Register (TCDLR) (Address = 0x0502)
Bit(s) Value Description
7:0 The eight LSBs of the divider limit value for Timer C are stored.
Timer C Divider High Register (TCDHR) (Address = 0x0503)
Bit(s) Value Description
7:0 The eight MSBs of the divider limit value for Timer C are stored.