Z86L81 Datasheet, PDF (61/88 Pages) Maxim Integrated Products – 28-Pin Low-Voltage Infrared Microcontrollers

Z86L81/86/98
28-Pin Low-Voltage Infrared Microcontrollers
55
SMR (0F) 0B
D7 D6 D5 D4 D3 D2 D1 D0
SCLK/TCLK Divide-by-16
0 OFF * *
1 ON
Reserved (Must be 0)
Stop-Mode Recovery Source
000 POR Only *
001 Reserved
010 P31
011 P32
100 P33
101 P27
110 P2 NOR 0-3
111 P2 NOR 0-7
Stop Delay
0 OFF
1 ON *
Stop Recovery Level * * *
0 Low *
1 High
Stop Flag
0 POR *
1 Stop Recovery * *
* Default setting after reset
* * Default setting after reset and stop-mode recovery
* * * At the XOR gate input
Figure 29. Stop-Mode Recovery Register
SCLK/TCLK Divide-by-16 Select (D0)
D0 of the SMR controls a divide-by-16 prescaler of SCLK/TCLK (Figure 30). The
purpose of this control is to selectively reduce device power consumption during
normal processor execution (SCLK control) and/or HALT Mode (where TCLK
sources interrupt logic). After Stop-Mode Recovery, this bit is set to a 0.
19-4615; Rev 0; 4/09