參數(shù)資料
型號(hào)： Z86C7216VSC
廠商： ZILOG INC
元件分類： 微控制器/微處理器
英文描述： IR MICROCONTROLLER
中文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQCC44
封裝： PLASTIC, LCC-44
文件頁數(shù)： 27/71頁
文件大小： 364K
代理商： Z86C7216VSC
Z86C72/C92/L72/L92
IR Microcontroller
Zilog
DS97LVO0900
P R E L I M I N A R Y
6-27
1
Comparator Inputs.
In Analog Mode, Port 3 (P31 and
P32) have a comparator front end. The comparator refer-
ence is supplied to P33 and Pref1. In this mode, the P33
internal data latch and its corresponding IRQ1 is diverted
to the SMR Sources (excluding P31, P32, and P33) as
shown in Figure 38. In digital mode, P33 is used as D3 of
the Port 3 input register which then generates IRQ1 as
shown in Figure 15.
When P31 is used as a counter timer input (demodulation
mode), Timer input is always taken from the P31 digital in-
put buffer (whether or not analog mode is enabled).
Notes:
Comparators are powered down by entering STOP
mode. For P31-P33 to be used as a Stop-Mode Recovery
source, these inputs must be placed into digital mode.
Comparator Outputs
. These may be programmed to be
output on P34 and P37 through the PCON register (Figure
15).
Figure 14. Port 3 Configuration
P34 OUT
P37 OUT
P32
+
-
P33 (Pref2)
0 = P34, P37 Standard Output
1 = P34, P37 Comparator Output
PCON
D0
P31
+
-
Pref1
P37
PAD
P34
PAD
*
T8
P34 OUT
0 Normal Control
1 8-bit Timer output active
CTR0
D0
Counter/Timer
Reset condition.
*
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