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| 型号： | TSC8051C1XXX-12IDD |
| 元件分类： | 8位微控制器 |
| 英文描述： | 8-Bit Microcontroller for Digital Computer Monitors |
| 中文描述： | 8位数字的电脑显示器微控制器 |
| 文件页数： | 11/31页 |
| 文件大小： | 321K |
| 代理商： | TSC8051C1XXX-12IDD |
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TSC8051C1
Rev. D (14 Jan. 97)
19
MATRA MHS
Figure 15. shows a typical use of I2C bus with SIO1, and
Figure 16. shows a complete data transfer with SIO1.
Rp
SCL/P3.6
SDA/P3.7
TSC8051C1
Device
2
Device
N
Device
1
Rp
Figure 15. Typical I2C bus configuration
R/W
direction
Acknowledgment
signal from receiver
MSB
SCL
SDA
S
P/S
Acknowledgment
signal from receiver
Slave Address
Nth data byte
Clock line held low while interrupts are serviced
12
8
9
bit
12
8
9
Figure 16. Complete data transfer on I2C bus
Three 8–bit special function registers are used to control
SIO1: the control register (S1CON SFR), the status
register (S1STA SFR) and the data register (S1DAT
SFR).
S1CON is used to enable SIO1, to program the bit rate
(see Table 6. ), to acknowledge or not a received data, to
send a start or a stop condition on the I2C bus, and to
acknowledge a serial interrupt.
S1CON: Synchronous Serial Control Register
MSB
SFR D8h
LSB
CR2
ENS1
STA
STO
SI
AA
CR1
CR0
Symbol
Position
Name and Function
CR0
S1CON.0
Control Rate bit 0. See Table 6.
CR1
S1CON.1
Control Rate bit 1. See Table 6.
AA
S1CON.2
Assert Acknowledge flag. In receiver mode, setting this bit forces an acknowledge
(low level on SDA). In receiver mode, clearing this bit forces a not acknowledge
(high level on SDA). When in transmitter mode, this bit has no effect.
SI
S1CON.3
Synchronous Serial Interrupt flag. This bit is set by hardware when a serial interrupt
is requested. This bit must be reset by software to acknowledge interrupt.
ST0
S1CON.4
Stop flag. Setting this bit causes a stop condition to be sent on bus.
STA
S1CON.5
Start flag. Setting this bit causes a start condition to be sent on bus.
ENS1
S1CON.6
Synchronous Serial Enable bit. Setting this bit enables the SIO1 controller.
CR2
S1CON.7
Control Rate bit 2. See Table 6.
S1CON is a read/write. Its value after reset is 00h which
disables the I2C controller.
S1CON is using TSC8051C1 Special Function Register
address, D8h.
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| TSC8051C1XXX-16CBR | 8-Bit Microcontroller for Digital Computer Monitors |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TSC8051C1XXX-12IDR | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-12IEB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-12IED | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-12IER | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-12IGB | 制造商:TEMIC 制造商全称:TEMIC Semiconductors 功能描述:8-Bit Microcontroller for Digital Computer Monitors |
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