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參數(shù)資料
| 型號： | TDA8031HL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | USB smart card reader (OTP or ROM) |
| 中文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, 1.40 MM HEIGHT, MS-026, SOT-314-2, LQFP-64 |
| 文件頁數(shù)： | 18/57頁 |
| 文件大?。?/td> | 228K |
| 代理商： | TDA8031HL |
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2003 Jul 04
18
Philips Semiconductors
Product specification
USB smart card reader (OTP or ROM)
TDA8030; TDA8031
8.1.4
ISO UART REGISTERS
8.1.4.1
UART transmit register
When the microcontroller wants to transmit a character to
the card, it writes the data in direct convention in this
register.
The transmission:
Starts at the end of this writing (2 clock cycles after the
rising edge of WR) if the previous character has been
transmitted and if the extra guard time has expired
Starts at the end of the extra guard time if this one has
not expired
Starts at 13.5 ETU in manual mode and 15 ETU in
automatic mode if the previous character has been
NAKed by the card; see Section 8.1.4.4
Does not start if the transmission of the previous
character is not completed.
When the transmission is completed:
In T = 0, bit TBE is set at 11.5 ETU, and bit PE in the
event of parity error
In T = 1, bit TBE is set at 10.5 ETU.
In the event of synchronous cards (bit SAN set within
UCR2), UT0 is only relevant and is copied on the I/O of the
card. It is possible to write within the UTR before setting
the transmission mode, which may be useful in some
cases.
Table 9
UART transmit register (address 0DH; write only); note 1
Note
1.
All bits are cleared after reset.
7
6
5
4
3
2
1
0
UT7
UT6
UT5
UT4
UT3
UT2
UT1
UT0
8.1.4.2
UART receive register
Whenthemicrocontrollerwantstoreaddatafromthecard,
it reads it from this register in direct convention.
In the event of synchronous cards, only UR0 is relevant
and is a copy of the state of the card I/O.
In the event of parity error:
The bit PE in the status register USR is set at 10.5 ETU
and INT0 falls LOW
In protocol T = 0, the received byte is not stored in URR;
In protocol T = 1, the received byte is stored.
In both protocols, when a character has been stored, then
the bit RBF in the status register USR is set at 10.5 ETU.
This bit is reset when the character has been read from the
URR.
When the URR is empty, then bit FE (in the MSR) is set as
long as no character has been received.
Table 10
UART receive register (address 0DH; read only); note 1
Note
1.
All bits are cleared after reset.
7
6
5
4
3
2
1
0
UR7
UR6
UR5
UR4
UR3
UR2
UR1
UR0
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| TDA8034HN/C1,118 | 功能描述:接口 - 專用 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 |
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