EZ80F92AZ020SC00TR Zilog, EZ80F92AZ020SC00TR Datasheet - Page 82
EZ80F92AZ020SC00TR
Manufacturer Part Number
EZ80F92AZ020SC00TR
Description
IC ACCLAIM MCU 128KB 100LQFP
Manufacturer
Zilog
Series
eZ80® Acclaim!®r
Specifications of EZ80F92AZ020SC00TR
Core Processor
Z8
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, IrDA, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
24
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
100-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
EZ80F92AZ020SC00T
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PS015313-0508
Watchdog Timer Reset Register
The Watchdog Timer Reset register, listed in
Watchdog Timer is reset when an
register. Any amount of time can occur between the writing of the
5Ah
Table 28. Watchdog Timer Reset Register; (WDT_RR = 0094h)
Bit
Position
[1:0]
WDT_PERIOD
Note: *RST_FLAG is only cleared by a non-WDT RESET.
Bit
Reset
CPU Access
Note: X = Undefined; W = Write only.
Bit
Position
[7:0]
WDT_RR
value, so long as the WDT time-out does not occur prior to completion.
Value Description
00
01
10
11
Value Description
A5h
5Ah
WDT time-out period is 2
WDT time-out period is 2
WDT time-out period is 2
WDT time-out period is 2
The first Write value required to reset the WDT prior to a time-
out.
The second Write value required to reset the WDT prior to a
time-out. If an A5h, 5Ah sequence is written to WDT_RR, the
WDT timer is reset to its initial count value, and counting
resumes.
W
X
7
A5h
W
X
6
value followed by
W
X
5
Table
28, is an 8-bit Write Only register. The
27
25
22
18
W
X
4
clock cycles.
clock cycles.
clock cycles.
clock cycles.
5Ah
W
X
3
is written to this
Product Specification
A5h
W
X
2
eZ80F92/eZ80F93
value and the
Watchdog Timer
W
X
1
W
X
0
75
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