Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 82

• Manufacturer Part Number: Z86D99
• Description: Low-Voltage Micro controllers with ADC
• Manufacturer: ZILOG [Zilog, Inc.]

PS003807-1002
Bit
Bit/Field
R/W
Reset
R = Read, W = Write, X = Indeterminate
Bit
Position
7_______
_6______
__54____
____32__
______1_
_______0
In Demodulation Mode, the T8 and T16 counter/timers are used to capture and
demodulate complex waveforms. The settings for CTR1 in Demodulation Mode
are given in Table 38.
Table 38. CTR1 Register (in Demodulation Mode) (Group/Bank 0Dh, Register 1)
7
Mode
R/W
0
Bit/Field
Mode
Demodulator_
Input
Edge_Detect
Glitch_Filter
Rising_Edge
Falling_Edge
P
6
Demod
_Input
R/W
0
R
E
L
5
Edge_Detect
R/W
0
R/W
R/W
R/W
R/W
R/W
R
R
W
W
R
R
W
W
I
M
Z86D990/Z86D991 OTP and Z86L99X ROM
4
R/W
0
Value
1
0
1
0
11
10
01
00
11
10
01
00
1
0
1
0
1
0
1
0
I
Low-Voltage Microcontrollers with ADC
N
A
3
Glitch_Filter
R/W
0
Description
Demodulation
Transmit
P20 as Demodulator Input
P51 as Demodulator Input
Reserved
Both Edges
Rising Edge
Falling Edge
16 SCLK Cycles
8 SCLK Cycles
4 SCLK Cycles
No Filter
Rising Edge Detected
No Rising Edge
Reset Flag to 0
No Effect
Falling Edge Detected
No Falling Edge
Reset Flag to 0
No Effect
R
Y
2
R/W
0
1
Rising
Edge
R/W
0
0
Falling
Edge
R/W
0
75