- 您现在的位置：买卖IC网 > PDF目录199480 > TSC8051C1XXX-12IDD 8-Bit Microcontroller for Digital Computer Monitors PDF资料下载
参数资料
| 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： | 28/31页 |
| 文件大小： | 321K |
| 代理商： | TSC8051C1XXX-12IDD |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页当前第28页第29页第30页第31页
TSC8051C1
Rev. D (14 Jan. 97)
6
MATRA MHS
6. Basic Functional Description
6.1. Idle And Power Down Operation
Figure 3 shows the internal Idle and Power Down clock
configuration. As illustrated, Power Down operation
stops the oscillator. Idle mode operation allows the
interrupt, serial port, and timer blocks to continue to
operate while the clock to the CPU is gated off.
These special modes are activated by software via the
Special Function Register, its hardware address is 87h.
PCON is not bit addressable.
OSC
CLOCK
GEN.
INTERRUPT
SERIAL PORT
TIMER
BLOCKS
CPU
IDL
XTAL2
XTAL1
PD
Figure 3. Idle and Power Down Hardware.
PCON: Power Control Register
MSB
SFR 87h
LSB
SMOD
–
GF1
GF0
PD
IDL
Symbol
Position
Name and Function
IDL
PCON.0
Idle mode bit. Setting this bit activates idle mode operation.
PD
PCON.1
Power Down bit. Setting this bit activates power down operation.
GF0
PCON.2
General–purpose flag bit.
GF1
PCON.3
General–purpose flag bit.
–
PCON.4
(Reserved).
–
PCON.5
(Reserved).
–
PCON.6
(Reserved).
SMOD
PCON.7
Double Baud rate bit. Setting this bit causes the baud rate to double when the serial port
is being used in either modes 1, 2 or 3.
If 1’s are written to PD and IDL at the same time, PD takes precedence. The reset value of PCON is 0XXX0000b.
6.1.1. Idle Mode
The instruction that sets PCON.0 is the last instruction
executed before the Idle mode is activated. Once in the
Idle mode the CPU status is preserved in its entirety: the
Stack Pointer, Program Counter, Program Status Word,
Accumulator, RAM, and all other register maintain their
data during Idle Table 1 describes the status of the
external pins during Idle mode.
There are two ways to terminate the Idle mode.
Activation of any enabled interrupt will cause PCON.0
to be cleared by hardware terminating Idle mode. The
interrupt is serviced, and following RETI, the next
instruction to be executed will be the one following the
instruction that wrote 1 to PCON.0.
The flag bits GF0 and GF1 may be used to determine
whether the interrupt was received during normal
execution or during the Idle mode. For example, the
instruction that writes to PCON.0 can also set or clear
one or both flag bits. When Idle mode is terminated by
an enabled interrupt, the service routine can examine the
status of the flag bits.
The second way of terminating the Idle is with a
hardware reset. Since the oscillator is still running, the
hardware reset needs to be active for only 2 machine
cycles (24 oscillator periods) to complete the reset
operation.
相关PDF资料 |
PDF描述 |
|---|---|
| TSC8051C1XXX-12IDR | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CAR | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CBR | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CEB | 8-Bit Microcontroller for Digital Computer Monitors |
| TSC8051C1XXX-16CED | 8-Bit Microcontroller for Digital Computer Monitors |
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 |
发布紧急采购，3分钟左右您将得到回复。