參數(shù)資料
型號: M38044M4-XXXHP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
封裝: 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁數(shù): 14/138頁
文件大?。?/td> 1887K
代理商: M38044M4-XXXHP
Rev.4.01
Nov 14, 2003
page 108 of 136
3803/3804 Group
q Error check command
Input command code 8016 in the first transfer, and the 3803/3804
group outputs error information from the SDA pin, beginning at the
next falling edge of the serial clock. If the LSB bit of the 8-bit error
information is 1, it indicates that a command error has occurred. A
command error means that some invalid commands other than
commands shown in Table 24 has been input.
When a command error occurs, the serial communication circuit
sets the corresponding flag and stops functioning to avoid an erro-
neous programming or erase. When being placed in this state, the
serial communication circuit does not accept the subsequent serial
clock and data (even including an error check command). There-
fore, if the user wants to execute an error check command,
temporarily drop the VPP pin input to the VPPL level to terminate
the serial input/output mode. Then, place the 3803/3804 group
into the serial I/O mode back again. The serial communication cir-
cuit is reset by this operation and is ready to accept commands.
The error flag alone is not cleared by this operation, so the user
can examine the serial communication circuit’s error conditions
before reset. This examination is done by the first execution of an
error check command after the reset. The error flag is cleared
when the user has executed the error check command. Because
the error flag is undefined immediately after power-on, always be
sure to execute the error check command.
Fig. 100 Timings at error checking
SCLK
BUSY
OE
SDA
E0
tCH
Command code input (8016)
Error flag output
00000001
??????
Note: When outputting the error flag, the SDA pin is switched for output at the first falling edge of the serial clock. The SDA pin is placed
in the floating state during the period of th(C-E) after the last rising edge of the serial clock (at the 8th bit).
?
“H”
“L”
相關PDF資料
PDF描述
M38047M6-XXXFP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039MF-XXXSP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PDIP64
M38039G8H-XXXKP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039GCH-XXXKP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
M38039GCHHP 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64
相關代理商/技術參數(shù)
參數(shù)描述
M38049FFFP#U0 制造商:Renesas Electronics Corporation 功能描述:
M38049FFLHP#U0 制造商:Renesas Electronics Corporation 功能描述:
M38049RLSS 功能描述:DEV EMULATOR CHIP RAM 2KB 64SDIP RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 內(nèi)電路編程器、仿真器以及調試器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 19/Jul/2010 標準包裝:1 系列:* 類型:* 適用于相關產(chǎn)品:* 所含物品:*
M3806 功能描述:電纜固定件和配件 LTSCG 625 BLACK RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強度:
M3806 BK001 制造商:Alpha Wire Company 功能描述:CBL 8COND 18AWG BLK 1000'