- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄379506 > UPD78322 (NEC Corp.) 16/8-BIT SINGLE-CHIP MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | UPD78322 |
| 廠商： | NEC Corp. |
| 英文描述： | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| 中文描述： | 16/8-BIT單片機(jī) |
| 文件頁數(shù)： | 31/88頁 |
| 文件大小： | 479K |
| 代理商： | UPD78322 |
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頁當(dāng)前第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
31
μ
PD78320, 78322
3.
BLOCK FUNCTIONS
3.1
BUS CONTROL UNIT (BCU)
In the BCU, the necessary bus cycle is started according to the physical address obtained by the execution unit (EXU).
If no bus cycle startup request is made from the EXU, a prefetch address is generated and instruction prefetch is carried
out. The prefetched operation code is fetched into the instruction queue.
3.2
EXECUTION UNIT (EXU)
In the EXU, address calculation, arithmetic logical operation and data transfer are controlled by microprograms. A 256-
byte RAM is built in the EXU.
The 256-byte main RAM in the EXU is accessible by the relevant instruction faster than peripheral RAM (384 bytes).
3.3
ROM/RAM
This block consists of a 16K-byte ROM and a 384-byte peripheral RAM. However, the
μ
PD78320 does not incorporate
ROM.
ROM access can be disabled by EA pin.
3.4
INTERRUPT CONTROLLER
Various interrupt requests (NMI, INTP0 to INTP6) generated either externally or from the peripheral hardware are
serviced by the context switch, vectored interrupt or macro service function.
The 3-level interrupt priority is also specified.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| UPD78322L | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD78361A | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD78361ACW | 16/8-BIT SINGLE-CHIP MICROCONTROLLER |
| UPD78363A | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
| UPD78365A | 16/8-BIT SINGLE-CHIP MICROCONTROLLERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UPD78365AGF3B9 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| UPD784031GC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT/16BIT 78K4 CISC ROMLESS 3.3V/5V 80PQFP - Trays 制造商:Renesas Electronics 功能描述:16 制造商:Renesas Electronics 功能描述:16 Cut Tape |
| UPD784031GK-9EU-A | 制造商:Renesas Electronics Corporation 功能描述:16BIT K4 ROMLESS - Bulk |
| UPD784031YGC-8BT | 制造商:Renesas Electronics Corporation 功能描述: |
| UPD784031YGC-8BT-A | 制造商:Renesas Electronics Corporation 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。