參數(shù)資料
型號(hào): Z86L80
廠商: ZiLOG, Inc.
英文描述: Low-Voltage Microcontroller
中文描述: 低電壓微控制器
文件頁(yè)數(shù): 50/58頁(yè)
文件大?。?/td> 301K
代理商: Z86L80
Z86L79/80
Low-Voltage Microcontroller
Zilog
3-50
P R E L I M I N A R Y
Figure 41. T8 and T16 Common Control Functions
((0D) 1H: Read/Write)
D7
D6
D5
D4
D3
D2
D1
D0
CTR1 (0D) 1H
0 T16_OUT is 0 Initially
1 T16_OUT is 1 Initially
Demodulation Mode
R/W
R
R
W
W
0 No Falling Edge Detection
1 Falling Edge Detection
0 No Effect
1 Reset Flag to 0
0 T8_OUT is 0 Initially
1 T8_OUT is 1 Initially
0 No Rising Edge Detection
1 Rising Edge Detection
0 No Effect
1 Reset Flag to 0
0 0 Normal Operation
0 1 Ping-Pong Mode
1 0 T16_OUT = 0
1 1 T16_OUT = 1
Transmit Mode/T8/T16 Logic
0 0 AND
0 1 OR
1 0 NOR
1 1 NAND
0 0 Falling Edge Detection
0 1 Rising Edge Detection
1 0 Both Edge Detection
1 1 Reserved
0 P36 as Port Output*
1 P36 as T8/T16_OUT
0 Transmit Mode*
1 Demodulation Mode
0 0 No Filter
0 1 4 SCLK Cycle Filter
1 0 8 SCLK Cycle Filter
1 1 16 SCLK Cycle Filter
Transmit Mode
Transmit Mode*
R/W
Demodulation Mode
R
R
W
W
Transmit Mode
Demodulation Mode
Demodulation Mode
Transmit Mode
0 P31 as Demodulator Input
1 P20 as Demodulator Input
Demodulation Mode
Transmit/Demodulation Modes
Note:
Care must be taken in differentiating
Transmit Mode from Demodulation Mode.
Depending on which of these two modes is
operating, the CTR1 bit will have different
functions.
Note:
Changing from one mode to
another cannot be done without
disabling the counter/timers.
*Default setting after reset.
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