參數(shù)資料
型號(hào): TMP90CM38
廠商: Toshiba Corporation
元件分類: 通用總線功能
英文描述: High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit A/D,D/A Converter,RAM,ROM,General Serial Interface,Multifuction Timer/Event Counter,Signal Selector Circuit,PWM Output(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位A/D,D/A轉(zhuǎn)換器,ROM,RAM,通用串行接口,多功能定時(shí)器/事件計(jì)數(shù)器,信號(hào)選擇電路,PWM輸出))
中文描述: 采用先進(jìn)的CMOS高速8位微控制器,集成8位A / D,D / A轉(zhuǎn)換,內(nèi)存,光盤,通用串行接口,Multifuction定時(shí)器/事件計(jì)數(shù)器,信號(hào)選擇器電路,PWM輸出(高速,先進(jìn)的的CMOS 8位微控制器(芯片集成了8位A / D轉(zhuǎn)換,數(shù)/模轉(zhuǎn)換器,ROM和RAM內(nèi)存,通用串行接口,多功能定時(shí)器/事件計(jì)數(shù)器,信號(hào)選擇電路,脈寬調(diào)制輸出))
文件頁數(shù): 46/172頁
文件大?。?/td> 5946K
代理商: TMP90CM38
46
TOSHIBA CORPORATION
TMP90CM38
3.5.5 Port 3 (P30 ~ P33)
P32, P33 are a 2-bit general-purpose I/O port. The control
register P38CR <P33C, P32C> is used for input or output.
P30, P31 are output ports. All bits of the output latch are
set to “1” by resetting, and “1” is generated to the output port.
Access of external memory makes P30, P31 function as the
memory control pins (RD and WR), when set IRF2 <EXT> to
“1”. When access of an internal memory makes them func-
tion, “1” is generated always.
Also function register P38CR <RDE> is intended fro a
pseudostatic RAM. When set IRF2 <EXT> to “1”, and set
P38CR <RDE> to “1”, it always functions as RD pin. There-
fore, the RD pin outputs “0” (Enable) when it is an internal
memory read and internal I/O read cycle.
Figure 3.5 (9). Port 3 (P30, 31)
相關(guān)PDF資料
PDF描述
TMP90CM40 High Speed Advanced CMOS 8-bit Microcontroller,Integrating 8-Bit CUP,A/D Converter,RAM,ROM,General Serial Interface,Multifuction Timer/Event Counter(高速、先進(jìn)的 CMOS 8位微控制器(芯片集成了8位CPU,A/D,轉(zhuǎn)換器,ROM,RAM,通用串行接口,多功能定時(shí)器/事件計(jì)數(shù)器))
TMP90P800 A System Evaluation LSI With One-Time PROM(8192 x 8-Bit),RAM(256 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路(帶一次可編程ROM(8192 x 8位),RAM(256 x 8位))
TMP90P802 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(8192 x 8-Bit),RAM(256 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(8192 x 8位),RAM(256 x 8位))
TMP90PH02 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(16384 x 8位),RAM(512 x 8位))
TMP90PH44 A System Evaluation LSI With 8-Bit CPU,One-Time PROM(16384 x 8-Bit),RAM(512 x 8-Bit)(系統(tǒng)評(píng)估大規(guī)模集成電路(集成8位CPU,一次可編程ROM(16384 x 8位),RAM(512 x 8位))
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