Z86L825 Datasheet, PDF (72/79 Pages) Zilog, Inc. – 20-Pin Low-Voltage IR Microcontrollers

Z86L825/826/827
20-Pin Low-Voltage IR Microcontrollers
65
WDTMR (0F) 0F
D7 D6 D5 D4 D3 D2 D1 D0
WDT TAP INT RC OSC
00 = 7.5 ms min
01* = 7.5 ms min
10 = 15 ms min
11 = 60 ms min
* Default setting after reset
WDT during HALT
0 = OFF
1 = ON*
WDT during STOP
0 = OFF
1 = ON*
Reserved (must be 0)
Figure 50. Watch-Dog Timer Mode Register—Write Only
WDT Time Select (D0, D1)
This bit selects the WDT time period. It is configured as indicated in Table 25.
Table 25. WDT Time Select
D1
D0 Time-Out of Internal RC OSC
0
0
0
1
1
0
1
1
7.5 ms min
7.5 ms min
15 ms min
60 ms min
Notes:
TpC = XTAL clock cycle.
The default on reset is 7.5 ms.
WDTMR During HALT (D2)
This bit determines whether or not the WDT is active during HALT Mode. A 1 indi-
cates active during HALT. The default is 1.
PS008808-1203
PRELIMINARY