- 您现在的位置：买卖IC网 > PDF目录80499 > M38D59GC-XXXFP 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PQFP80 PDF资料下载
参数资料
| 型号： | M38D59GC-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 6.25 MHz, MICROCONTROLLER, PQFP80 |
| 封装： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件页数： | 28/142页 |
| 文件大小： | 2004K |
| 代理商： | M38D59GC-XXXFP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页当前第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页
Rev.3.04
May 20, 2008
Page 123 of 134
REJ03B0158-0304
38D5 Group
3. JMP Instruction
When using the JMP instruction (indirect addressing mode), do
not specify the address where “FF16” is allocated to the low-
order 8 bits as the operand.
4. Multiplication and Division Instructions
(1) The MUL and DIV instructions are not affected by the T and
D flags.
(2) Executing these instructions does not change the contents of
the processor status register.
5. Read-Modify-Write Instruction
Do not execute any read-modify-write instruction to the read
invalid (address) SFR.
The read-modify-write instruction reads 1-byte of data from
memory, modifies the data, and writes 1-byte the data to the
original memory.
In the 740 Family, the read-modify-write instructions are the
following:
(1) Bit handling instructions:
CLB, SEB
(2) Shift and rotate instructions:
ASL, LSR, ROL, ROR, RRF
(3) Add and subtract instructions:
DEC, INC
(4) Logical operation instructions (1’s complement):
COM
Although not the read-modify-write instructions, add and
subtract/logical operation instructions (ADC, SBC, AND, EOR,
and ORA) when T flag = “1” operate in the way as the read-
modify-write instruction. Do not execute them to the read invalid
SFR.
<Reason>
When the read-modify-write instruction is executed to the read
invalid SFR, the following may result:
As reading is invalid, the read value is undefined. The instruction
modifies this undefined value and writes it back, so the written
value will be indeterminate.
Notes on Peripheral Functions
Notes on I/O Ports
1. Use in Stand-By State
When using the MCU in stand-by state*1 for low-power
consumption, do not leave the input level of an I/O port
undefined. Be especially careful to the I/O ports for the N-
channel open-drain.
In this case, pull-up (connect to Vcc) or pull-down (connect to
Vss) these ports through a resistor.
When determining a resistance value, note the following:
External circuit
Variation in the output level during ordinary operation
When using a built-in pull-up resistor, note variations in current
values:
When setting as an input port: Fix the input level
When setting as an output port: Prevent current from
flowing out externally.
<Reason>
Even if a port is set to output by the direction register, when the
content of the port latch is “1”, the transistor becomes the OFF
state, which allows the port to be in the high-impedance state.
This may cause the level to be undefined depending on external
circuits.
As described above, if the input level of an I/O port is left
undefined, the power source current may flow because the
potential applied to the input buffer in the MCU will be unstable.
*1 Stand-by state: Stop mode by executing the STP instruction
Wait mode by executing the WIT instruction
2. Modifying Output Data with Bit Handling Instruction
When the port latch of an I/O port is modified with the bit
handling instruction*1, the value of an unspecified bit may
change.
<Reason>
I/O ports can be set to input mode or output mode in byte units.
When the port register is read or written, the following will be
operated:
Port as input mode
Read: Read the pin level
Write: Write to the port latch
Port as output mode
Read: Read the port latch or peripheral function output
(specifications vary depending on the port)
Write: Write to the port latch (output the content of the port
latch from the pin)
Meanwhile, the bit handling instructions are the read-modify-
write instructions*2. Executing the bit handling instruction to the
port register allows reading and writing a bit unspecified with the
instruction at the same time.
If an unspecified bit is set to input mode, the pin level is read and
the value is written to the port latch. At this time, if the original
content of the port latch and the pin level do not match, the
content of the port latch changes.
If an unspecified bit is set to output mode, the port latch is
normally read, but the peripheral function output is read in some
ports and the value is written to the port latch. At this time, if the
original content of the port latch and the peripheral function
output do not match, the content of the port latch changes.
*1 Bit handling instructions: CLB, SEB
*2 Read-modify-write instruction: Reads 1-byte of data from
memory, modifies the data, and writes 1-byte of the data to
the original memory.
相关PDF资料 |
PDF描述 |
|---|---|
| MC68B05P2L | 8-BIT, MROM, 2 MHz, MICROCONTROLLER, CDIP28 |
| MC908QB4MDT | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
| MC908QY2AVDWE | 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO16 |
| MK2745-20SLF | 108 MHz, VIDEO CLOCK GENERATOR, PDSO16 |
| MK2742-04SLFTR | 81 MHz, VIDEO CLOCK GENERATOR, PDSO16 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M38D59GFFP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80QFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| M38D59GFHP#U0 | 功能描述:IC 740/38D5 MCU QZ-ROM 80LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 标准包装:250 系列:80C 核心处理器:8051 芯体尺寸:8-位 速度:16MHz 连通性:EBI/EMI，I²C，UART/USART 外围设备:POR，PWM，WDT 输入/输出数:40 程序存储器容量:- 程序存储器类型:ROMless EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:A/D 8x10b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:68-LCC（J 形引线） 包装:带卷 (TR) |
| M38D59T-RLFS | 功能描述:BOARD EMULATOR FOR 38D5 GROUP RoHS:否 类别:编程器，开发系统 >> 内电路编程器、仿真器以及调试器 系列:- 产品变化通告:Development Systems Discontinuation 19/Jul/2010 标准包装:1 系列:* 类型:* 适用于相关产品:* 所含物品:* |
| M38DC-15 | 制造商:M/A-COM Technology Solutions 功能描述:MIXER(SPEC UX1015) - Bulk |
| M38K00F1-16FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。