參數(shù)資料
型號: ST72T85A5Q6
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU FOR RDS WITH 48K ROM, 3K RAM, ADC, TWO TIMERS, TWO SPIs, I2C AND SCI INTERFACES
中文描述: 8位微控制器48,000鐵路發(fā)展策略光盤,3K內(nèi)存,ADC,兩個定時器,2個SPI,I2C和脊髓損傷接口
文件頁數(shù): 17/117頁
文件大?。?/td> 748K
代理商: ST72T85A5Q6
17/117
ST7285C
3.2 MISCELLANEOUS REGISTER
The Miscellaneous register allows one to select
the SLOW operating mode and to set the clock di-
vision prescaler factor. Bits 3 and 4 allow one to
set PB7 functionality (I/O, CPU Clock o/p or Beep
signal o/p), while bits 6 and 7 determine the signal
conditions which will trigger an interrupt request on
I/O pins having interrupt capability.
Register Address: 0020h
Reset Value: 00h
Read/Write
b7, b6 -
EI1, EI0
: External Interrupt Option
0 0 - Negative edge and low level (Reset state)
1 0 - Negative edge only
0 1 - Positive edge only
1 1 - Positive and negative edge
This selection applies globally to the four external
interrupts: I1, I2, I9 and I10.
b6 and b7 can be written only when the Interrupt
Mask (I) of the CC (Condition Code) register is set
to 1.
b5
- Reserved
b4, b3 -
SK1, CK0:
Clock/Beep Output
0 0 - I/O port (Reset state)
1 0 - I/O port
0 1 - CPU Clock output to pin PB7
1 1 - 2KHz Beep signal output to pin PB7
(at 8.664 MHz oscillator frequency)
b2, b1 -
SM1,SM0:
CPU clock prescaler for Slow
Mode
0 0 - Oscillator frequency / 4
1 0 - Oscillator frequency / 8
0 1 - Oscillator frequency / 16
1 1 - Oscillator frequency / 32
b0 -
SMS:
Slow Mode Select
0- Normal mode - Oscillator frequency / 2
(Reset state)
1- Slow mode (Bits b1 and b2 define the prescaler
factor)
7
0
EI1
EI0
b5
SK1
CK0
SM1
SM0
SMS
相關(guān)PDF資料
PDF描述
ST730C08L3 PHASE CONTROL THYRISTORS
ST730C08L3L PHASE CONTROL THYRISTORS
ST730C12L0 PHASE CONTROL THYRISTORS
ST730C12L0L PHASE CONTROL THYRISTORS
ST730C12L1 PHASE CONTROL THYRISTORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST730 制造商:IRF 制造商全稱:International Rectifier 功能描述:PHASE CONTROL THYRISTORS Hockey Puk Version
ST7-30 制造商:SUPERWORLD 制造商全稱:Superworld Electronics 功能描述:POWER TRANSFORMER
ST-7300 制造商:GC Electronics 功能描述:
ST730186-3 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述:
ST730268-1 制造商:KEMET Corporation 功能描述: 制造商:KET 功能描述: