- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄201871 > MC68HC912BL16VFU8 (FREESCALE SEMICONDUCTOR INC) 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP64 PDF資料下載
參數(shù)資料
| 型號： | MC68HC912BL16VFU8 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 21/128頁 |
| 文件大?。?/td> | 3326K |
| 代理商： | MC68HC912BL16VFU8 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁當(dāng)前第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
MC68HC912BL16TS/D
117
The second type of BDM commands are called rmware commands because they are implemented in
a small ROM within the HC12 MCU. The CPU must be in background mode to execute firmware com-
mands. The usual way to get to background mode is by the hardware command BACKGROUND. The
BDM ROM is located at $FF20 to $FFFF while BDM is active. There are also seven bytes of BDM reg-
isters which are located at $FF00 to $FF06 while BDM is active. The CPU executes code from this ROM
to perform the requested operation. The BDM rmware watches for serial commands and executes
them as they are received. The rmware commands are shown in Table 39.
Table 38 BDM Hardware Commands
Command
Opcode (Hex)
Data
Description
BACKGROUND
90
None
Enter background mode (if firmware enabled).
READ_BD_BYTE
E4
16-bit address
16-bit data out
Read from memory with BDM in map (may steal cycles
if external access) data for odd address on low byte,
data for even address on high byte.
STATUS1
NOTES:
1. STATUS command is a specific case of the READ_BD_BYTE command.
E4
FF01,
0000 0000 (out)
READ_BD_BYTE $FF01. Running user code (BGND
instruction is not allowed).
FF01,
1000 0000 (out)
READ_BD_BYTE $FF01. BGND instruction is allowed.
FF01,
1100 0000 (out)
READ_BD_BYTE $FF01. Background mode active
(waiting for single wire serial command).
READ_BD_WORD
EC
16-bit address
16-bit data out
Read from memory with BDM in map (may steal cycles
if external access) must be aligned access.
READ_BYTE
E0
16-bit address
16-bit data out
Read from memory with BDM out of map (may steal cy-
cles if external access) data for odd address on low
byte, data for even address on high byte.
READ_WORD
E8
16-bit address
16-bit data out
Read from memory with BDM out of map (may steal cy-
cles if external access) must be aligned access.
WRITE_BD_BYTE
C4
16-bit address
16-bit data in
Write to memory with BDM in map (may steal cycles if
external access) data for odd address on low byte, data
for even address on high byte.
ENABLE_ FIRMWARE2
2. ENABLE_FIRMWARE is a specific case of the WRITE_BD_BYTE command.
C4
FF01,
1xxx xxxx(in)
Write byte $FF01, set the ENBDM bit. This allows exe-
cution of commands which are implemented in firm-
ware. Typically, read STATUS, OR in the MSB, write
the result back to STATUS.
WRITE_BD_WORD
CC
16-bit address
16-bit data in
Write to memory with BDM in map (may steal cycles if
external access) must be aligned access.
WRITE_BYTE
C0
16-bit address
16-bit data in
Write to memory with BDM out of map (may steal cycles
if external access) data for odd address on low byte,
data for even address on high byte.
WRITE_WORD
C8
16-bit address
16-bit data in
Write to memory with BDM out of map (may steal cycles
if external access) must be aligned access.
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MK74CG117AFT | 90 MHz, OTHER CLOCK GENERATOR, PDSO48 |
| MC68HC08AS32ACFU | 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQFP64 |
| MC68HRC98JL3ECFA | 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48 |
| MC68HRC98JL3EMDW | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO28 |
| MC68HC05C9AFN | 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC44 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC68HC916P1CAA16 | 功能描述:16位微控制器 - MCU 16B MCU 32K FLASH RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT |
| MC68HC916P1CFU16 | 制造商:Rochester Electronics LLC 功能描述:16BIT W/32KB FLASH EEPRO - Bulk |
| MC68HC916P1VAA16 | 功能描述:IC MCU 32K FLASH 16MHZ 80-QFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC16 標(biāo)準(zhǔn)包裝:1 系列:AVR® ATmega 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C，SPI，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，POR，PWM，WDT 輸入/輸出數(shù):32 程序存儲器容量:32KB（16K x 16） 程序存儲器類型:閃存 EEPROM 大小:1K x 8 RAM 容量:2K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:44-TQFP 包裝:剪切帶 (CT) 其它名稱:ATMEGA324P-B15AZCT |
| MC68HC916P3CFU16 | 制造商:Rochester Electronics LLC 功能描述:16BIT MCU FOR GENERAL - Bulk |
| MC68HC98LJ12CFU | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。