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型號(hào)：	MR80C154-30P883D
廠商：	TEMIC SEMICONDUCTORS
元件分類(lèi)：	微控制器/微處理器
英文描述：	8-BIT, 30 MHz, MICROCONTROLLER, CQCC44
文件頁(yè)數(shù)：	193/839頁(yè)
文件大?。?/td>	61013K
代理商：	MR80C154-30P883D

ATmega165A/PA/325A/PA/3250A/PA/645A/P/6450A/P [DATASHEET]

8285E–AVR–02/2013

Figure 27-10. Serial Programming and verify

1. If the device is clocked by the internal Oscillator, it is no need to connect a clock source to the XTAL1 pin.

CC - 0.3V < AVCC < VCC + 0.3V, however, AVCC should always be within 1.8 - 5.5V

When programming the EEPROM, an auto-erase cycle is built into the self-timed programming operation (in the

Serial mode ONLY) and there is no need to first execute the Chip Erase instruction. The Chip Erase operation

turns the content of every memory location in both the Program and EEPROM arrays into 0xFF.

Depending on CKSEL Fuses, a valid clock must be present. The minimum low and high periods for the serial clock

(SCK) input are defined as follows:

Low: > 2 CPU clock cycles for f

ck < 12MHz, 3 CPU clock cycles for fck 12MHz

High: > 2 CPU clock cycles for f

ck < 12MHz, 3 CPU clock cycles for fck 12MHz

Serial Programming Algorithm

When writing serial data to the Atmel

ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P, data is clocked on the rising edge of

When reading data from the

ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P, data is clocked on the falling edge of

To program and verify the

ATmega165A/165PA/325A/325PA/3250A/3250PA/645A/645P/6450A/6450P in the serial programming mode, the

following sequence is recommended (See four byte instruction formats in Table 27-16 on page 274):

Power-up sequence:

Apply power between V

CC and GND while RESET and SCK are set to “0”. In some systems, the program-

mer can not guarantee that SCK is held low during power-up. In this case, RESET must be given a positive

pulse of at least two CPU clock cycles duration after SCK has been set to “0”.

Wait for at least 20ms and enable serial programming by sending the Programming Enable serial instruction

to pin MOSI.

The serial programming instructions will not work if the communication is out of synchronization. When in

sync. the second byte (0x53), will echo back when issuing the third byte of the Programming Enable instruc-

tion. Whether the echo is correct or not, all four bytes of the instruction must be transmitted. If the 0x53 did

not echo back, give RESET a positive pulse and issue a new Programming Enable command.

The Flash is programmed one page at a time. The page size is found in Table 27-7 on page 260. The mem-

ory page is loaded one byte at a time by supplying the 6 LSB of the address and data together with the

Load Program Memory Page instruction. To ensure correct loading of the page, the data low byte must be

loaded before data high byte is applied for a given address. The Program Memory Page is stored by loading

the Write Program Memory Page instruction with the 7 MSB of the address. If polling (RDY/BSY) is not

相關(guān)PDF資料	PDF描述
MR83C154TXXX-30P883	8-BIT, MROM, 30 MHz, MICROCONTROLLER, CQCC44
MQ80C154-30P883D	8-BIT, 30 MHz, MICROCONTROLLER, CQFP44
MR83C154XXX-12/883D	8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44
MD80C154-L16/883	8-BIT, 16 MHz, MICROCONTROLLER, CDIP40
MQ83C154XXX-16/883	8-BIT, MROM, 16 MHz, MICROCONTROLLER, CQFP44

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
MR80C154-36	制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MR80C154-L16	制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MR80C31BH	制造商:ROCHESTER 制造商全稱:ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MR80C31BH/B	制造商:n/a 功能描述:8506401XA
MR80C31BHB	制造商:n/a 功能描述:8506401XA

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