Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 113
Z8F011ASH020EG2156
Manufacturer Part Number
Z8F011ASH020EG2156
Description
8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
Manufacturer
ZiLOG
Datasheet
1.Z8F011AHJ020EG2156.pdf
(257 pages)
Specifications of Z8F011ASH020EG2156
Rohs
yes
Core
eZ8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
1 KB
Data Ram Size
256 B
On-chip Adc
No
Package / Case
SOIC-20
Mounting Style
SMD/SMT
Interface Type
UART
Maximum Operating Temperature
+ 105 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
17
Number Of Timers
2
Program Memory Type
Flash
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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PS025113-1212
Bit
Field
RESET
R/W
Address
Bit
[7:0]
WDTUNLK
Watchdog Timer Control Register Definitions
Watchdog Timer Control Register
Description
Watchdog Timer Unlock
The user software must write the correct unlocking sequence to this register before it is
allowed to modify the contents of the Watchdog Timer Reload registers.
W
X
7
This section defines the features of the following Watchdog Timer Control registers.
Watchdog Timer Control Register
Watchdog Timer Reload Low Byte Register
Watchdog Timer Reload Upper Byte Register
Watchdog Timer Reload High Byte Register
The Watchdog Timer Control (WDTCTL) Register is a write-only control register. Writ-
ing the unlock sequence:
Watchdog Timer Reload Byte registers (WDTU, WDTH and WDTL) to allow changes to
the time-out period. These write operations to the WDTCTL Register address have no
effect on the bits in the WDTCTL Register. The locking mechanism prevents spurious
writes to the reload registers.
This register address is shared with the read-only Reset Status Register.
Table 59. Watchdog Timer Control Register (WDTCTL)
W
6
X
W
X
5
55H
,
AAH
(WDTCTL): see page 95
W
to the WDTCTL Register address unlocks the three
X
4
WDTUNLK
FF0H
(WDTL): see page 97
(WDTH): see page 96
Watchdog Timer Control Register Definitions
(WDTU): see page 96
W
X
3
W
X
Z8 Encore!
2
Product Specification
W
X
1
®
F0830 Series
W
X
0
95
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