參數(shù)資料
型號(hào): ST68C454CJ68
廠商: EXAR CORP
元件分類: 微控制器/微處理器
英文描述: 4 CHANNEL(S), 1.5M bps, SERIAL COMM CONTROLLER, PQCC68
封裝: PLASTIC, LCC-68
文件頁(yè)數(shù): 2/29頁(yè)
文件大小: 184K
代理商: ST68C454CJ68
ST16C454
10
Rev. 3.30
Internal Registers
The 454 provides 12 internal registers for monitoring and
control. These resisters are shown in Table 4 below.
These registers are similar to those already available in
the standard 16C450. These registers function as data
holding registers (THR/RHR), interrupt status and con-
Table 4, INTERNAL REGISTER DECODE
A2
A1
A0
READMODE
WRITE MODE
General Register Set (THR/RHR, IER/ISR, MCR/MSR, LCR/LSR, SPR):
0
Receive Holding Register
Transmit Holding Register
0
1
Interrupt Enable Register
0
1
0
Interrupt Status Register
0
1
Line Control Register
1
0
Modem Control Register
1
0
1
Line Status Register
1
0
Modem Status Register
1
Scratchpad Register
Baud Rate Register Set (DLL/DLM): Note *2
0
LSB of Divisor Latch
0
1
MSB of Divisor Latch
Note *2: These registers are accessible only when LCR bit-7 is set to a logic 1.
trol registers (IER/ISR), line status and control registers
(LCR/LSR), modem status and control registers (MCR/
MSR), programmable data rate (clock) control registers
(DLL/DLM), and a user assessable scratchpad register
(SPR). Register functions are more fully described in
the following paragraphs.
相關(guān)PDF資料
PDF描述
ST72F324BK2T6 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
ST72F324BJ2T5 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP44
ST733C04LCK3LP 1900 A, 400 V, SCR, TO-200AC
ST733C04LCL3P 1900 A, 400 V, SCR, TO-200AC
ST733C04LCN0LP 1900 A, 400 V, SCR, TO-200AC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ST68C554 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD UART WITH 16-BYTE FIFOS
ST68C554CJ68 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述:
ST68C554CJ68-F 功能描述:UART 接口集成電路 SIGNALS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
ST68C554IJ68 制造商:Exar Corporation 功能描述:
ST68C554IJ68-F 功能描述:UART 接口集成電路 SIGNALS RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel