參數(shù)資料
型號: AT89C5131A-RDTUM
廠商: Atmel
文件頁數(shù): 148/176頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 32K USB 64VQFP
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 800
系列: AT89C513x
核心處理器: C52X2
芯體尺寸: 8-位
速度: 48MHz
連通性: I²C,SPI,UART/USART,USB
外圍設(shè)備: LED,POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 4K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 64-LQFP
包裝: 托盤
配用: AT89STK-10-ND - KIT EVAL APPL MASS STORAGE
AT89STK-05-ND - KIT STARTER FOR AT89C5131
72
AT89C5131
4136C–USB–04/05
BRL - Baud Rate Reload Register for the internal baud rate generator, UART (9Ah)
Reset Value = 0000 0000b
Table 58. T2CON Register
T2CON - Timer 2 Control Register (C8h)
Reset Value = 0000 0000b
Bit addressable
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2#
CP/RL2#
Bit
Number
Bit
Mnemonic
Description
7
TF2
Timer 2 overflow Flag
Must be cleared by software.
Set by hardware on Timer 2 overflow, if RCLK = 0 and TCLK = 0.
6EXF2
Timer 2 External Flag
Set when a capture or a reload is caused by a negative transition on T2EX pin if
EXEN2 = 1.
When set, causes the CPU to vector to Timer 2 interrupt routine when Timer 2
interrupt is enabled.
Must be cleared by software. EXF2 doesn’t cause an interrupt in Up/down
counter mode (DCEN = 1)
5
RCLK
Receive Clock bit for UART
Cleared to use Timer 1 overflow as receive clock for serial port in mode 1 or 3.
Set to use Timer 2 overflow as receive clock for serial port in mode 1 or 3.
4TCLK
Transmit Clock bit for UART
Cleared to use Timer 1 overflow as transmit clock for serial port in mode 1 or 3.
Set to use Timer 2 overflow as transmit clock for serial port in mode 1 or 3.
3EXEN2
Timer 2 External Enable bit
Cleared to ignore events on T2EX pin for Timer 2 operation.
Set to cause a capture or reload when a negative transition on T2EX pin is
detected, if Timer 2 is not used to clock the serial port.
2TR2
Timer 2 Run control bit
Cleared to turn off Timer 2.
Set to turn on Timer 2.
1C/T2#
Timer/Counter 2 select bit
Cleared for timer operation (input from internal clock system: F
CLK PERIPH).
Set for counter operation (input from T2 input pin, falling edge trigger). Must be 0
for clock out mode.
0
CP/RL2#
Timer 2 Capture/Reload bit
If RCLK = 1 or TCLK = 1, CP/RL2# is ignored and timer is forced to Auto-reload
on Timer 2 overflow.
Cleared to Auto-reload on Timer 2 overflows or negative transitions on T2EX pin
if EXEN2 = 1.
Set to capture on negative transitions on T2EX pin if EXEN2 = 1.
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