參數(shù)資料
型號(hào)： UPD72001C
廠商： NEC Corp.
英文描述： MULTI-PROTOCOL SERIAL CONTROLLERS
中文描述： 多協(xié)議串行控制器
文件頁(yè)數(shù)： 9/40頁(yè)
文件大?。?/td> 206K
代理商： UPD72001C
μ
PD72001-11, 72001-A8
9
Table 1-2 shows the selection operations by WR, RD, B/A, and C/D.
Table 1-2. MPSC Control Signals and Operations
WR
RD
B/A
C/D
Operation
L
H
L
L
Channel A
Writes transmit data to T
X
buffer
H
Channel B
H
L
L
L
Channel A
Reads receive data from R
X
buffer
H
Channel B
L
H
L
H
Channel A
Writes control register
H
Channel B
H
L
L
H
Channel A
Reads status register
H
Channel B
H
H
×
×
High-impedance state or INTAK sequence
L
L
×
×
Setting prohibited
×
: Don’s Care
(9) D7 through D0 (Data Bus) ... I/O
These pins constitute a three-state 8-bit bidirectional data bus. This data bus is connected to the data bus of
the host processor to transfer control words, status, and transmit/receive data.
(10)INT (Interrupt) ... Output (open drain)
This pin outputs an interrupt request signal. If an interrupt occurs in the MPSC, it goes low (active). Because
this is an open-drain output pin, it must be pulled up.
(11)INTAK (Interrupt Acknowledge) ... Input
This pin inputs a signal to acknowledge interrupt request signals issued by the MPSC. This pin is active-low.
This pin is used when the vector mode (CR2A: D7 = “1”) is selected, and must be pulled up to “H” when the non-
vector mode (CR2A: D7 = “0”) is selected.
(12)PRI (Priority Input) ... Input
This input pin is used for an interrupt generation request signal and for an output control signal for interrupt vectors.
In the normal operation mode, this pin provides an interrupt generation control function. During the INTAK
sequence, it provides an output control function for interrupt vectors. How this pin is used differs depending on
the interrupt mode.
(a) In vector mode (CR2A: D7 = “1”)
In the normal operation mode, the PRI pin is used to control generation of interrupts. When interrupt vector
output mode of Type A-3 or Type B-2 (CR2A: D5, D4, D3 = “0, 1, 0” or “1, 0, 0”) is selected, interrupts can
be generated regardless of whether the PRI pin is “L” or “H”.
If any other interrupt vector output mode is selected, the PRI pin must be kept “L” to enable generation of
interrupts.
During the INTAK sequence, an interrupt vector is output if “L” is input to the PRI pin in any interrupt vector
output mode, and output of the interrupt vector is disabled if “H” is input to PRI.
相關(guān)PDF資料
PDF描述
UPD72001L MULTI-PROTOCOL SERIAL CONTROLLERS
UPD72001GC-11-3B6 MULTI-PROTOCOL SERIAL CONTROLLERS
UPD72001GC-A8-3B6 MULTI-PROTOCOL SERIAL CONTROLLERS
UPD72001-11 MULTI-PROTOCOL SERIAL CONTROLLERS
UPD72001-A8 MULTI-PROTOCOL SERIAL CONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UPD720101F1 制造商:NEC Electronics Corporation 功能描述:
UPD720101F1-EA8 制造商:NEC Electronics Corporation 功能描述:
UPD720101F1-EA8 ( PRICE BREAK 250K - 制造商:Renesas Electronics Corporation 功能描述:
UPD720101F1-EA8_NEC 制造商:Renesas Electronics Corporation 功能描述:
UPD720101F1-EA8-A 功能描述:HOST CTLR USB 2.0 144-FBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:2,450 系列:- 控制器類型:SPI 總線至 I²C 總線橋接 接口:I²C，串行，SPI 電源電壓:2.4 V ~ 3.6 V 電流 - 電源:11mA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-HVQFN（4x4） 包裝:托盤 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名稱:935286452157SC18IS600IBSSC18IS600IBS-ND
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*