參數(shù)資料
型號(hào)： EP7212-CB-A
廠商： CIRRUS LOGIC INC
元件分類： 微控制器/微處理器
英文描述： HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
中文描述： 32-BIT, MROM, 74 MHz, RISC MICROCONTROLLER, PBGA256
封裝： 17 X 17 MM, 1.53 MM HEIGHT, PLASTIC, BGA-256
文件頁數(shù)： 92/136頁
文件大小： 2289K
代理商： EP7212-CB-A
EP7212
92
DS474PP1
5.16.3
DAISR DAI
Status Register
ADDRESS: 0x8000.2100
The DAI Status Register (DAISR) contains bits which signal FIFO overrun and underrun errors and
FIFO service requests. Each of these conditions signal an interrupt request to the interrupt controller.
The status register also flags when transmit FIFOs are not full, when the receive FIFOs are not empty,
when a FIFO operation is complete, and when the right channel or left channel portion of the codec
is enabled (no interrupt generated).
Bits which cause an interrupt signal the interrupt request as long as the bit is set. Once the bit is
cleared, the interrupt is cleared. Read / write bits are called status bits, read-only bits are called flags.
Status bits are referred to as “sticky” (once set by hardware, they must be cleared by software). Writ-
ing a one to a sticky status bit clears it, while writing a zero has no effect. Read-only flags are set and
cleared by hardware, and writes have no effect. Additionally, some bits which cause interrupts have
corresponding mask bits in the control register and are indicated in the section headings below. Note
that the user has the ability to mask all DAI interrupts by clearing the DAI bit within the interrupt con-
troller mask register INTMR3.
31:13
Reserved
6
RCNFLCTU
12
11
10
9
8
7
FIFO
5
LCNE
4
LCNF
3
LCRS
RCNE
2
LCTS
RCNF
1
LCRSRCRS
RCCELCRO
0
LCTSRCTS
LCRORCRO
LCTURCTU
Bit
0
Description
RCTS:
Right Channel Transmit FIFO Service Request Flag (read-only)
0 — Right Channel Transmit FIFO is more than half full (five or more entries filled) or DAI dis-
abled
1 — Right Channel Transmit FIFO is half full or less (four or fewer entries filled) and DAI opera-
tion is enabled, interrupt request signaled if not masked
(if RCTM = 1)
RCRS:
Right Channel Receive FIFO Service Request (read-only)
0 — Right Channel Receive FIFO is less than half full (five or fewer entries filled) or DAI disabled
1 — Right Channel Receive FIFO is half full or more (six or more entries filled) and DAI opera-
tion is enabled, interrupt request signaled if not masked (if RCRM = 1)
LCTS:
Left Channel Transmit FIFO Service Request Flag (read-only)
0 — Left Channel Transmit FIFO is more than half full or less (four or fewer entries filled) or DAI
disabled.
1 — Left Channel Transmit FIFO is half full or less (four or fewer entries filled) and DAI operation
is enabled, interrupt request signaled if not masked
(if LCTM = 1)
LCRS:
0 — Left Channel Receive FIFO is less than half full (five or fewer entries filled) or DAI
disabled.
1 — Left Channel Receive FIFO is half full or more (six or more entries filled) and DAI operation
is enabled, interrupt request signalled if not masked (if LCRM = 1)
1
2
3
Table 54.
DAI
Control, Data and Status Register Locations
相關(guān)PDF資料
PDF描述
EP7212-CV-A HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7309 HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
EP7309-CB-C CONN MODULAR JACK 8-8 R/A UNSHLD
EP7309-CR-C HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
EP7309-CV-C HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EP7212-CV-A 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH-PERFORMANCE, LOW-POWER SYSTEM-ON-CHIP WITH LCD CONTROLLER AND DIGITAL AUDIO INTERFACE(DAI)
EP7212-CV-D 制造商:Rochester Electronics LLC 功能描述:- Bulk
EP7230 功能描述:電氣外殼配件 E-PANEL FITS 72 X 30 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black
EP7236 功能描述:電氣外殼配件 E-PANEL FITS 72 X 36 RoHS:否 制造商:Hammond Manufacturing 產(chǎn)品:Rack Accessories 類型: 面板寬度: 面板高度: 外部寬度: 外部高度: 外部深度: 顏色:Black
EP7309 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:HIGH PERFORMANCE LOW POWER SYSTEM ON CHIP ENHANCED DIGITAL AUDIO INTERFACE
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。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。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

我的聯(lián)系方式

*
*
*