參數(shù)資料
型號: Z86L70
廠商: ZiLOG, Inc.
英文描述: IR/Low-Voltage Microcontroller
中文描述: 紅外/低電壓微控制器
文件頁數(shù): 17/61頁
文件大?。?/td> 349K
代理商: Z86L70
Z86L70/71/75/C71
Zilog
IR/Low-Voltage Microcontroller
DS97LVO0500
P R E L I M I N A R Y
1-17
1
Comparator Inputs.
In Analog Mode, Port 3 (P31 and
P32) have a comparator front end. P33 serves as the ref-
erence for both comparators. 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 Fig-
ure 16.
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
. COMP1 may be programmed to be
outputted on P34 through the PCON register (Figure 15).
Power-On Reset.
the typical reset output time is 5 ms.
The Z86L7X does not reset WDTMR, SMR, P2M, or P3M
registers on a Stop-Mode Recovery operation.
Figure 11. Port 3 Configuration
Port 3
(I/O or Handshake)
Z86L7X
Pref1
P31
P32
P33
P34
P35
P36
P37
Note:
P31, 32, 33 have a 200 K
mask option
200 K
Mask
Option
D1
R247 = P3M
P31 (AN1)
P32 (AN2)
P33 (REF2)
From Stop-Mode
Recovery Source of SMR
1 = Analog
0 = Digital
IRQ2, P31 Data Latch
IRQ0, P32 Data Latch
IRQ1, P33 Data Latch
DIG.
AN.
-
+
-
+
Pref
Comp1
Comp2
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