ZLF645E0H2864G Zilog, ZLF645E0H2864G Datasheet - Page 83

• Manufacturer Part Number: ZLF645E0H2864G
• Description: IC MCU 64K FLASH 1K RAM 28-SSOP
• Manufacturer: Zilog
• Series: Crimzon™ ZLFr

Specifications of ZLF645E0H2864G

• Core Processor: Z8 LXMC
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, WDT
• Number Of I /o: 24
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.9 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 28-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Oscillator Type: -
• Other names: 269-4719

Table 40. Flash Controller Functions Summary
PS026407-0408
Table 39. Flash Frequency Low Byte Register (FFREQL)
Bit Position
[7:0]
Control Source
ICP
Instruction
Codes
Notes
Bits
Field
Reset
R/W
Address
1. FLPROT1 = 0, cannot read or write lowest half of memory. FLRWP = 0, cannot read or write entire main
2. FLRWP = 0, cannot write or erase Page 3.
3. FLPROT1 = 0, no effect. FLRWP = 0, no effect.
memory.
Flash Controller Functions Summary
7
The Flash Controller performs its functions, directed by either the ICP interface or by
instruction codes.
to the control source and whether operation is performed on Flash main memory or
Information Area.
Flash Memory
Value
Information
Information
Memory
Memory
Block
Main
Area
Main
Area
6
Description
FFREQL —Flash Frequency Low Byte
Low byte of the 16-bit Flash Frequency value.
Table 40
Program
Page 3
Only
Yes
Yes
No
5
Bank F, Register address: 04H
lists the functions that will or will not be performed, according
Page 3
Read
Only
Yes
Yes
4
No
FFREQL
R/W
0
Page 3
Erase
Page
3
Only
Yes
Yes
No
ZLF645 Series Flash MCUs
2
Erase
Flash Control Register Definitions
Mass
Yes
No
No
No
Product Specification
1
Flash Protect
Yes
Yes
No
No
3
3
1
2
0
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