Z86L81 Datasheet, PDF (42/88 Pages) Maxim Integrated Products – 28-Pin Low-Voltage Infrared Microcontrollers

Z86L81/86/98
28-Pin Low-Voltage Infrared Microcontrollers
36
Counter_INT_Mask
This bit is set to allow an interrupt when T16 times out.
P35_Out
This bit defines whether P35 is used as a normal output pin or T16 output.
SMR2 Stop-Mode Recovery Register 2
Table 13 lists and briefly describes the fields for this register.
Table 13. SMR2(F)0Dh: Stop-Mode Recovery Register 2
Field
Reserved
Recovery Level
Reserved
Source
Bit Position
7-------
-6------
W
--5-----
---432--
W
Reserved
------10
Notes:
* Indicates the value upon Power-On Reset
Value
0
0*
1
0
000*
001
010
011
100
101
110
111
00
Description
Reserved (Must be 0)
Low
High
Reserved (Must be 0)
A. POR Only
B. NAND of P23–P20
C. NAND of P27–P20
D. NOR of P33–P31
E. NAND of P33–P31
F. NOR of P33-P31, P00, P07
G. NAND of P33-P31, P00, P07
H. NAND of P33-P31, P22–P20
Reserved (Must be 0)
Counter/Timer Functional Blocks
Input Circuit
The edge detector monitors the input signal on P31 or P20. Based on CTR1 D5–
D4, a pulse is generated at the Pos Edge or Neg Edge line when an edge is
detected. Glitches in the input signal that have a width less than specified (CTR1
D3, D2) are filtered out (see Figure 14).
19-4615; Rev 0; 4/09