- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄363896 > W78C438C40FL (WINBOND ELECTRONICS CORP) 8-BIT MICROCONTROLLER PDF資料下載
參數(shù)資料
| 型號(hào)： | W78C438C40FL |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT MICROCONTROLLER |
| 中文描述： | 8-BIT, 40 MHz, MICROCONTROLLER, PQFP100 |
| 封裝： | ROHS COMPLIANT, PLASTIC, QFP-100 |
| 文件頁(yè)數(shù)： | 12/22頁(yè) |
| 文件大?。?/td> | 266K |
| 代理商： | W78C438C40FL |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)當(dāng)前第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)
W78C438C
- 12 -
5.6 Programming Difference
The W78C438C is programmed in the same way as the W78C32, except that the external data RAM
is accessed by a "MOVX @Ri" instruction. To support address paging, there is an additional 8-bit SFR
"HB" (high byte), which is a nonstandard register, at address 0A1H. During execution of the "MOVX
@Ri" instruction, the contents of HB are output to AP6. The page address is modified by loading the
HB register with a new value before execution of the "MOVX @Ri" instruction. To read/write the HB
register, one can use the "MOV direct" instruction or "read-modify-write" instructions. The HB register
does not support bit-addressable instructions.
[Example].
MOV
R1, #0H
; R1 = 0.
MOV
0A1H, #0FFH ; HB contents FFH.
MOVX
A, @R1
; Read the contents of external RAM location FF00H into
; Accumulator.
MOV
0A1H, #12H
; HB contents 12H.
MOVX
@R1, A
; Copies the contents of Accumulator into external RAM
; location 1200H.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W78C438C40PL | 8-BIT MICROCONTROLLER |
| W78C458 | 8-BIT EMULATION MICROCONTROLLER |
| W78958B | 8-BIT EMULATION MICROCONTROLLER |
| W78958BF | 8-BIT EMULATION MICROCONTROLLER |
| W78C154 | 8-BIT EMULATION MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W78C438C40PL | 功能描述:IC MCU 8-BIT ROMLESS 84-PLCC RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:W78 標(biāo)準(zhǔn)包裝:60 系列:PSOC® 3 CY8C38xx 核心處理器:8051 芯體尺寸:8-位 速度:67MHz 連通性:EBI/EMI，I²C，LIN，SPI，UART/USART 外圍設(shè)備:電容感應(yīng)，DMA，LCD，POR，PWM，WDT 輸入/輸出數(shù):25 程序存儲(chǔ)器容量:64KB（64K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:2K x 8 RAM 容量:8K x 8 電壓 - 電源 (Vcc/Vdd):1.71 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 2x20b，D/A 4x8b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-VFQFN 裸露焊盤(pán) 包裝:托盤(pán) |
| W78C438CF-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C438CF-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C438CP-24 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
| W78C438CP-40 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT MICROCONTROLLER |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。