Z86L88 Datasheet, PDF (47/80 Pages) Zilog, Inc. – INFRARED REMOTE CONTROLLERS

Z86L88
Low-Voltage IR Microcontroller
40
Table 19. CTR1(D)01h Register (Continued)
Field
Initial_T8_Out/Rising_Edge
Bit Position
------1-
R/W
Value
0
1
Initial_T16_Out/Falling_Edge
-------0
R
0
1
W0
1
R/W 0
1
Note:
*Default upon Power-On Reset
R
0
1
W0
1
Description
Transmit Mode
T8_OUT is 0 Initially
T8_OUT is 1 Initially
Demodulation Mode
No Rising Edge
Rising Edge Detected
No Effect
Reset Flag to 0
Transmit Mode
T16_OUT is 0 Initially
T16_OUT is 1 Initially
Demodulation Mode
No Falling Edge
Falling Edge Detected
No Effect
Reset Flag to 0
Mode
If it is 0, the counter/timers are in the transmit mode; otherwise, they are in the
demodulation mode.
P36_Out/Demodulator_Input
In transmit mode, this bit defines whether P36 is used as a normal output pin or
the combined output of T8 and T16.
In demodulation mode, this bit defines whether the input signal to the counter/tim-
ers is from P20 or P31.
T8/T16_Logic/Edge_Detect
In transmit mode, this field defines how the outputs of T8 and T16 are combined
(AND, OR, NOR, NAND).
In demodulation mode, this field defines which edge needs to be detected by the
edge detector.
Transmit_Submode/Glitch_Filter
In transmit mode, this field defines whether T8 and T16 are in the “Ping-Pong”
mode or in independent normal operation mode. Setting this field to “Normal
19-4614; Rev 0; 4/09