Z86D7308HSC datasheet(44/92 Pages) ZILOG

44 / 92 page

Z86D73

40/44/48-Pin Low-Voltage IR OTP

PS019402-1103

Mode

If the result 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/

Timers 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 should 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

Operation Mode” terminates the “Ping-Pong Mode” operation. When 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 must 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

Initial_T16_Out/

Falling_Edge

-------0

R/W

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

Note:

*Default upon Power-On Reset

Table 12. CTR(D)01h T8 and T16 Common Functions (Continued)

Field

Bit Position

Value

Description

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