ZLF645S2864GP0001 Maxim Integrated, ZLF645S2864GP0001 Datasheet - Page 69
ZLF645S2864GP0001
Manufacturer Part Number
ZLF645S2864GP0001
Description
8-bit Microcontrollers - MCU Crimzon Flash Infrared MCU
Manufacturer
Maxim Integrated
Datasheet
1.ZLF645E0H4864G2204.pdf
(201 pages)
Specifications of ZLF645S2864GP0001
Core
Z8
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Program Memory Size
64 KB
Data Ram Size
1 KB
Operating Supply Voltage
2 V to 3.6 V
Interface Type
UART
Number Of Programmable I/os
5
Number Of Timers
2 x 8 bit, 1 x 16 bit
Processor Series
ZLF645
Program Memory Type
Flash
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Flash Programming through the ICP Interface
19-4572; Rev 0; 4/09
Differences Between CPU Based and ICP Based Flash Programming/
Erase Access
Using ICP Commands for Flash Programming/Read Operations
•
•
Following are the differences for the allowed access capabilities between Flash accesses
initiated by the CPU through instruction code and those initiated through the ICP
interface:
1. The settings of the Flash Controller’s Sector Protect Register (SPR) are ignored for
2. Mass erase operations can be executed through the ICP interface.
As described in the ICP In-Circuit Programming Commands, there are two commands that
can be used for Flash programming and Flash data read operations. These commands are
the
the programming time required to program the Flash Memory using the ICP interface the
following considerations concerning the use of these commands should be kept in mind:
•
Write Flash Memory (0AH) and Read Flash Memory (0BH)
ICP
Write Test Mode Register (F0H)— The Write Test Mode Register command writes
the data that follows the command to the
ICP
ICP
Read Test Mode Register (F1H)— The Read Test Mode register command reads the
value of the TESTMODE register.
ICP
ICP
ICP
Flash programming or page erase operations initiated through the ICP interface.
The
Flash programming data. When 1 or more data bytes are to be programmed to one or
more non-sequential Flash Memory address locations, a value of
Size [15:8] and Size [7:0] arguments must be used. Using the command in this way re-
quires that, for each byte of data to be programmed, 6 bytes be transmitted across the
ICP. Following is an example of the ICP transmit sequence using the command, for
programming two bytes of data:
Write Flash Memory
Autobaud[7:0]
F0H
TESTMODE[7:0]
F1H
TESTMODE[7:0]
Autobaud[7:0]
command can be used in two different ways for transmitting
TEST Mode Register
Flash Programming through the ICP Interface
ZLF645 Series Flash MCUs
Product Specification
commands. To minimize
(TESTMODE).
0001H
for the
61
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