Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 113

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Z8F041APH020SG2156

Manufacturer Part Number
Z8F041APH020SG2156
Description
8-bit Microcontrollers - MCU 4K FLASH 1K RAM 128B NVDS
Manufacturer
ZiLOG
Datasheet

Specifications of Z8F041APH020SG2156

Rohs
yes
Core
eZ8
Processor Series
Z8F041xx
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
Program Memory Size
4 KB
Data Ram Size
1 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Operating Temperature Range
- 40 C to + 105 C
Package / Case
PDIP-20
Mounting Style
Through Hole
A/d Bit Size
10 bit
A/d Channels Available
8
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
PS022827-1212
Bit
[7:0]
WDTUNLK
Bit
Field
RESET
R/W
Address
Note: X = Undefined.
Watchdog Timer Control Register Definitions
Note:
Watchdog Timer Control Register
Description
Watchdog Timer Unlock
The 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
into the Watchdog Timer Reload registers results in a one-second time-out at room tem-
perature and 3.3 V supply voltage. Time-outs other than one second may be obtained by
scaling the calibration values up or down as required.
The Watchdog Timer accuracy still degrades as temperature and supply voltage vary. See
Table 137
This section defines the features of the following Watchdog Timer Control registers.
Watchdog Timer Control Register
Watchdog Timer Reload Upper Byte Register
Watchdog Timer Reload High Byte Register
Watchdog Timer Reload Low Byte Register
The Watchdog Timer Control (WDTCTL) Register is a write-only control register. Writ-
ing the
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 produce 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 Sta-
tus Register.
55H
Table 59. Watchdog Timer Control Register (WDTCTL)
on page 235 for details.
W
,
6
X
AAH
unlock sequence to the WDTCTL Register address unlocks the three
W
X
5
P R E L I M I N A R Y
(WDTCTL): see page 96
W
X
4
WDTUNLK
FF0H
(WDTL): see page 98
(WDTH): see page 97
(WDTU): see page 97
W
X
3
Z8 Encore! XP
Watchdog Timer Control Register
W
X
2
Product Specification
W
X
1
®
F082A Series
W
X
0
96

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