Z8F041APH020SG2156 ZiLOG, Z8F041APH020SG2156 Datasheet - Page 174

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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
Field
RESET
R/W
Address
Bit
[7:0]
SPROTn
Flash Sector Protect Register
Flash Frequency High and Low Byte Registers
Description
Sector Protection
Each bit corresponds to a 1024-byte Flash sector on devices in the 8K range, while the
remaining devices correspond to a 512-byte Flash sector. To determine the appropriate Flash
memory sector address range and sector number for your Z8F082A Series product, please
refer to
• For Z8F08xA and Z8F04xA devices, all bits are used.
• For Z8F02xA devices, the upper 4 bits are unused.
• For Z8F01xA devices, the upper 6 bits are unused.
SPROT7
R/W
7
0
The Flash Sector Protect (FPROT) Register is shared with the Flash Page Select Register.
When the Flash Control Register is written with
the Flash Sector Protect Register. In all other cases, it targets the Flash Page Select Regis-
ter.
This register selects one of the 8 available Flash memory sectors to be protected. The reset
state of each Sector Protect bit is an unprotected state. After a sector is protected by setting
its corresponding register bit, it cannot be unprotected (the register bit cannot be cleared)
without powering down the device.
The Flash Frequency High (FFREQH) and Low Byte (FFREQL) registers combine to
form a 16-bit value, FFREQ, to control timing for Flash program and erase operations.
The 16-bit binary Flash Frequency value must contain the system clock frequency (in
kHz) and is calculated using the following equation:
FFREQ[15:0]
Table 78
SPROT6
R/W
Table 83. Flash Sector Protect Register (FPROT)
6
0
on page 146 and to Figure 21, which follows the table.
=
FFREQH[7:0],FFREQL[7:0]
SPROT5
R/W
5
0
P R E L I M I N A R Y
SPROT4
R/W
4
0
FF9H
SPROT3
R/W
3
0
5EH
=
, the next write to this address targets
System Clock Frequency
------------------------------------------------------ -
Z8 Encore! XP
SPROT2
Flash Control Register Definitions
R/W
2
0
1000
Product Specification
SPROT1
R/W
1
0
®
F082A Series
SPROT0
R/W
0
0
157

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