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参数资料
| 型号： | 5962-9855202QXX |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 封装： | CERAMIC, PGA-144 |
| 文件页数： | 64/64页 |
| 文件大小： | 1464K |
| 代理商： | 5962-9855202QXX |
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9
UART Transmitter Buffer Register
The UT69R000’s internal UART forms an 11-bit serial string
by combining a Start bit, the eight Data bits from the
Transmitter Buffer Register, an odd Parity bit, and a Stop bit.
Figure 9 shows the composition of the serial data string. The
UT69R000 transmits this serial string through the UARTOUT
pin at a rate of 9600 baud (TIMCLK = 12MHz).
The UT69R000’s internal UART has a double-buffered data
transmission register (figure 10). The UT69R000 first loads
the data for transmission into the Transmitter Buffer Register.
If the UART Transmitter Register is empty, data from the
Transmit Buffer Register automatically transfers to the UART
Transmitter Register. At this time, the TBE bit goes active
indicating more data may be loaded into the Transmit Buffer
Register. This double-buffering scheme allows contiguous
transmission of serial data streams and also decreases the
UT69R000’s required overhead for the UART interface. The
UT69R000 loads the 8-bit Transmit Buffer Register via the
OTR Rd, TXMT instruction.
Two status signals are associated with transmitting serial data.
These signals are the UART Transmitter Buffer Empty (TBE)
and UART Transmitter Register Empty (TE). TBE and TE are
both active high and provide information on the status of double
buffering the UART’s transmitted data. TBE and TE are read
from the System Status Register bits 2 and 1
respectively.
5
4
T3
R
2
01
S
T
D
7
T
X
D
T
X
D
T
X
6
T
X
D
T
X
D
T
X
D
T
X
D
T
X
D
P
A
S
T
O
Figure 9. UART Transmitter Data String
P
R
DIRECTION
OF DATA
FLOW OUT
OF THE
UT69R000
Figure 10. The UT69R000 UART Double-Buffered Transmitter Register
REGISTER (OTR) INSTRUCTION
TBR WITH AN OUTPUT
DATA IS LOADED INTO THE
OF THE SYSTEM STATUS
READ FROM BIT 1
TRANSMITTER REGISTER IS
STATUS OF THE UART
8
REGISTER
UART TRANSMITTER
REGISTER (TBR)
UART TRANSMITTER BUFFER
16
DATA BUS
THE UT69R000’s INTERNAL
FROM BIT 2
TBR IS READ
STATUS OF THE
DATA FLOW
DIRECTION OF
T
R
T
S
0
1
2
3
4
5
6
7
X
T
X
T
X
T
X
T
X
T
X
T
X
T
X
T
R
A
P
O
T
S
0
1
2
3
4
5
6
D
X
T
D
X
T
D
X
T
D
X
T
D
X
T
D
X
T
D
X
T
7
D
X
T
D
C
D
C
D
C
D
C
D
C
D
C
D
C
D
C
OF THE SYSTEM
REGISTER
STATUS REGISTER
相关PDF资料 |
PDF描述 |
|---|---|
| 5962F9855202QXA | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855201QXX | 32-BIT, 12 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855202VXA | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962G9855202VXX | 32-BIT, 16 MHz, RISC MICROCONTROLLER, CPGA144 |
| 5962H9855201VXC | 32-BIT, 12 MHz, RISC MICROCONTROLLER, CPGA144 |
相关代理商/技术参数 |
参数描述 |
|---|---|
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| 5962-9856401QEA | 制造商:Texas Instruments 功能描述:Decoder/Driver Single 4-to-7 16-Pin CDIP Tube |
| 5962-9858401QFA | 功能描述:LVDS 接口集成电路 RoHS:否 制造商:Texas Instruments 激励器数量:4 接收机数量:4 数据速率:155.5 Mbps 工作电源电压:5 V 最大功率耗散:1025 mW 最大工作温度:+ 85 C 封装 / 箱体:SOIC-16 Narrow 封装:Reel |
| 5962-9858501QFA | 功能描述:总线接收器 RoHS:否 制造商:Texas Instruments 接收机数量:4 接收机信号类型:Differential 接口类型:EIA/TIA-422-B, V.11 工作电源电压:3.3 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-16 封装:Reel |
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