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參數(shù)資料
| 型號： | DS8007A-EAG+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 15/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC INTERFACE SMART CARD 48-LQFP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 104 |
| 應(yīng)用： | 智能卡 |
| 接口： | 并聯(lián) |
| 電源電壓： | 2.7 V ~ 6 V |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 管件 |
| 安裝類型： | 表面貼裝 |
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DS8007A
Multiprotocol Dual Smart Card Interface
22
______________________________________________________________________________________
Mixed Status Register (MSR)
R = unrestricted read, W = unrestricted write, -n = value after reset. This register is reset to u1u1uuu0b on RIU = 0.
765
43
2
1
0
Address 0Ch
CLKSW
FE
BGT
CRED
PRB
PRA
INTAUX
TBE/RBF
R-0
R-1
R-0
R-1
R-0
Bit 7: Clock Switch (CLKSW). This status bit indicates
the clock (fXTAL / n or fINT / 2) being sourced by the
selected card interface and thus may be used to deter-
mine when a requested clock switch has occurred
properly. When CLKSW is set 1, the clock has switched
from fXTAL / n to fINT / 2; when CLKSW is cleared to 0,
the clock has switched from fINT / 2 to fXTAL / n.
Bit 6: FIFO Empty Status Bit (FE). This bit is set to 1
when the receive FIFO is empty. This bit is cleared to 0
when at least one character remains in the receive FIFO.
Bit 5: Block Guard Time Status Bit (BGT). This status
bit is linked to an ETU counter for the currently selected
card interface, and is intended for use in verifying that
the block guard time is always being met. The counter
restarts on every start bit and stops only if the terminal
count is reached. The terminal count is dependent
upon the selected protocol (16 ETU for T = 0 and 22
ETU for T = 1). This bit is cleared to 0 on every start bit.
Bit 4: Control Ready (CRED). This bit signals the host
device that the DS8007A is ready to handle the next
write operation to UTR or TOC or the next read opera-
tion of URR. When CRED = 0, the DS8007A is still work-
ing on the previous operation and cannot correctly
process the new read/write request. When CRED = 1,
the DS8007A is ready for the next read/write request.
This “busy” bit allows the DS8007A to meet the timing
constraints of high-speed host devices. The CRED bit
remains low:
3 clock cycles after the rising edge of RD before
reading URR.
3 clock cycles after the rising edge of WR (or CS)
before writing to UTR.
1/PSC (min) ETU and 2/PSC (max) ETU after the
rising edge of WR (or CS) before writing to TOC
The CRED bit timing applies to asynchronous mode
only; this bit is forced to 1 in synchronous mode.
Bit 3: Presence Card B (PRB). This bit is set to 1 when
card B presence is detected and is cleared to 0 when
card B is not present.
Bit 2: Presence Card A (PRA). This bit is set to 1 when
card A presence is detected and is cleared to 0 when
card A is not present.
Bit 1: INTAUX Bit (INTAUX). This bit reflects the state
of the INTAUX pin. This bit is set when the INTAUX pin
is high and is cleared when the INTAUX pin is low.
Bit 0: Transmit Buffer Empty/Receive Buffer Full
(TBE/RBF). This bit signals special conditions relating
to the ISO UART and associated hardware. This bit is
not set when the last character is transmitted by the
UART when LCT = 1.
This bit is set to 1 when:
UCR1.T/R is changed from 0 (receive mode) to 1
(transmit mode).
A character is transmitted by the UART.
The receive FIFO becomes full.
This bit is cleared to 0 when:
The ISO UART is reset by RIU = 0.
A character is written to the UART transmit register
(UTR) in transmit mode.
A character is read from the receive FIFO in
receive mode.
UCR1.T/R is changed from 1 (transmit mode) to 0
(receive mode).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS8007A-EAG+ | 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| DS8007A-EAG+T | 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| DS8007-ENG | 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Multiprotocol Dual Smart Card Interface |
| DS8007-ENG+ | 功能描述:接口 - 專用 Multiprotocol Dual Smart Card Interface RoHS:否 制造商:Texas Instruments 產(chǎn)品類型:1080p60 Image Sensor Receiver 工作電源電壓:1.8 V 電源電流:89 mA 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:BGA-59 |
| DS8007-KIT | 功能描述:界面開發(fā)工具 DS8007 Eval Kit RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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