Z8F011ASH020EG2156 ZiLOG, Z8F011ASH020EG2156 Datasheet - Page 137

• Manufacturer Part Number: Z8F011ASH020EG2156
• Description: 8-bit Microcontrollers - MCU 1K FLASH 256B RAM 16B NVDS
• Manufacturer: ZiLOG

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

PS025113-1212
Bit
Field
RESET
R/W
Address
Bit
[7:0]
FCMD
Flash Control Register
Description
Flash Command
73H = First unlock command.
8CH = Second unlock command.
95H = Page erase command (must be third command in sequence to initiate page erase).
63H = Mass erase command (must be third command in sequence to initiate mass erase).
5EH = Enable Flash Sector Protect Register access.
W
7
0
The Flash Controller must be unlocked using the Flash Control Register before program-
ming or erasing Flash memory. Writing the sequence
Control Register unlocks the Flash Controller. When the Flash Controller is unlocked,
Flash memory can be enabled for mass erase or page erase by writing the appropriate
enable command to the FCTL. Page erase applies only to the active page selected in Flash
Page Select Register. Mass erase is enabled only through the On-Chip Debugger. Writing
an invalid value or an invalid sequence returns the Flash Controller to its Locked state.
The write-only Flash Control Register shares its register file address with the read-only
Flash Status Register.
W
6
0
Table 72. Flash Control Register (FCTL)
W
5
0
W
4
0
FCMD
FF8H
W
3
0
73H 8CH
Flash Control Register Definitions
W
Z8 Encore!
2
0
, sequentially, to the Flash
Product Specification
W
1
0
®
F0830 Series
W
0
0
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