參數(shù)資料
型號: MAX3109ETJ+
廠商: Maxim Integrated Products
文件頁數(shù): 52/66頁
文件大?。?/td> 0K
描述: SEMICONDUCTOR OTHER
標(biāo)準(zhǔn)包裝: 60
系列: *
Dual Serial UART with 128-Word FIFOs
MAX3109
56
Maxim Integrated
Timer Register 1 (TIMER1)
The TIMER1 and TIMER2 register contents can be used to generate a low-frequency clock signal on a GPIO_ output.
The low-frequency clock is a divided replica of the fractional baud-rate generator output. If TIMER1 and TIMER2 are
both 0x00, the low-frequency clock is off.
Bits 7–0: Timerx
The TIMER1[7:0] bits are the 8 LSBs of the 15-bit timer divisor. See the TIMER2 register description.
Timer Register 2 (TIMER2)
The TIMER1 and TIMER2 register contents can be used to generate a low-frequency clock signal on a GPIO_ output.
The low-frequency clock is a divided replica of the fractional baud-rate generator output. If TIMER1 and TIMER2 are
both 0x00, the low-frequency clock is off.
Bit 7: TmrToGPIO
Set the TmrToGPIO bit high to enable clock generation at a GPIO output. The clock signal is routed to GPIO1 for UART0
and GPIO5 for UART1. The output clock has a 50% duty cycle.
Bits 6–0: Timerx
The TIMER2[6:0] bits are the 7 MSBs of the 15-bit timer divisor. The clock frequency is calculated using the following
formula:
fTIMER_CLK = UARTClk/(1024 x Timerx)
where UARTClk is the fractional baud-rate generator output (i.e., 16 x Baud Rate).
Revision Identification Register (RevID)
Bits 7–0: Bitx
The RevID register indicates the revision number of the MAX3109 silicon starting with 0xC0. This can be used during
software development as a known reference.
ADDRESS:
0x24
MODE:
R/W
BIT
7
6
5
4
3
2
1
0
NAME
TmrToGPIO
Timer14
Timer13
Timer12
Timer11
Timer10
Timer9
Timer8
RESET
0
ADDRESS:
0x25
MODE:
R
BIT
7
6
5
4
3
2
1
0
NAME
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
RESET
1
0
1
0
ADDRESS:
0x23
MODE:
R/W
BIT
7
6
5
4
3
2
1
0
NAME
Timer7
Timer6
Timer5
Timer4
Timer3
Timer2
Timer1
Timer0
RESET
0
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MAX3109ETJ+T 功能描述:UART 接口集成電路 Dual Serial UART with 128-Word FIFOs 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
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