z86e31 ZiLOG Semiconductor, z86e31 Datasheet - Page 45

• Manufacturer Part Number: z86e31
• Description: Z8 4k Otp Microcontroller
• Manufacturer: ZiLOG Semiconductor

Zilog
cycles from the execution of the first instruction after
Power-On Reset, Watch-Dog reset or a STOP-Mode
Recovery (Figures 33 and 34). After this point, the register
cannot be modified by any means, intentional or
DS97Z8X0502
WDTMR (F) 0F
*
D7 D6 D5 D4 D3 D2 D1 D0
Default setting after RESET
Figure 33. Watch-Dog Timer Mode Register
P R E L I M I N A R Y
Write Only
otherwise. The WDTMR cannot be read and is located in
Bank F of the Expanded Register Group at address
location 0FH.
WDT During HALT
0 OFF
1 ON
WDT During STOP
0 OFF
1 ON
XTAL1/INT RC Select for WDT
0 On-Board RC
1 XTAL
Reserved (Must be 0)
WDT TAP
00
01
10
11
*
*
*
INT RC OSC System Clock
80 ms
10 ms
20 ms
5 ms
*
2048 SCLK
128 SCLK
256 SCLK
512 SCLK
Z8 4K OTP Microcontroller
Z86E30/E31/E40
45
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