z86l88 ZiLOG Semiconductor, z86l88 Datasheet - Page 48

• Manufacturer Part Number: z86l88
• Description: Low-voltage Ir Microcontroller
• Manufacturer: ZiLOG Semiconductor

PS024102-0804
Note:
Operation Mode” terminates the “Ping-Pong Mode” operation. When this field is
set to 10, T16 is immediately forced to a 0; a setting of 11 forces T16 to output a 1.
In demodulation mode, this field defines the width of the glitch that needs to be fil-
tered out.
Initial_T8_Out/Rising_Edge
In transmit mode, if 0, the output of T8 is set to 0 when it starts to count. If 1, the
output of T8 is set to 1 when it starts to count. When the counter is not enabled
and this bit is set to 1 or 0, T8_OUT is set to the opposite state of this bit. This
measure ensures that when the clock is enabled, a transition occurs to the initial
state set by CTR1, D1.
In demodulation mode, this bit is set to 1 when a rising edge is detected in the
input signal. In order to reset it, a 1 must be written to this location.
Initial_T16 Out/Falling_Edge
In transmit mode, if it is 0, the output of T16 is set to 0 when it starts to count. If it
is 1, the output of T16 is set to 1 when it starts to count. This bit is effective only in
Normal or Ping-Pong Mode (CTR1, D3, D2). When the counter is not enabled and
this bit is set, T16_OUT is set to the opposite state of this bit. This measure
ensures that when the clock is enabled, a transition occurs to the initial state set
by CTR1, D0.
In demodulation mode, this bit is set to 1 when a falling edge is detected in the
input signal. In order to reset it, a 1 must be written to this location.
Modifying CTR1 (D1 or D0) while the counters are enabled
causes unpredictable output from T8/16_OUT.
Low-Voltage IR Microcontroller
Z86L88
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