Rev. 1.0, 02/00, page 268 of 1141
Bits 5 and 4
Selecting the Monitor Signals (MON1 or MON0): These bits work to select the
type of signals being output through the BUZZ pin for monitoring purpose. These settings are
valid only when the BUZZ1 and BUZZ0 bits are being set to 10.
When PB-CTL or REC-CTL is chosen, signal duties will be output as they are.
In case of DVCTL signals, signals from the CTL dividing circuit will be toggled before being
output. Signal waveforms divided by the CTL dividing circuit into n-divisions will further be
divided into halves. (Namely, 2n divisions, 50% duty waveform).
In case of TCA7, Bit 7 of the counter of the Timer A will be output. (50% duty)
When prescaler W is being used with the Timer A, 1 Hz outputs are available.
Bit 5
Bit 4
MON1
MON0
Description
0
PB or REC-CTL
(Initial value)
0
1
DVCTL
1
*
Outputs TCA7
Note:
*
Don't care.
Bit 3
Expansion Function Control Bit (EXN): This bit enables or disables the expansion
function of TMJ-2. When the expansion function is enabled, TMJ-2 works as a 16-bit counter, and
further input clock sources and types can be selected.
Bit 3
EXN
Description
0
Enables the TMJ-2 expansion function
1
Disables the TMJ-2 expansion function
(Initial value)
Bit 2
Enabling Interrupt of the TMJ2I (TMJ2IE): This bit works to permit/prohibit
occurrence of TMJ2I interrupt of the TMJS in 1-set of the TMJ2I.
Bit 2
TMJ2IE
Description
0
Prohibits occurrence of TMJ2I interrupt
(Initial value)
1
Permits occurrence of TMJ2I interrupt