参数资料
| 型号： | MAX3108EWA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/56页 |
| 文件大小： | 0K |
| 描述： | IC UART |
| 产品培训模块： | Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 系列： | * |
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SPI/I2C UART with 128-Word FIFOs in WLP
MAX3108
24
Maxim Integrated
During power-up or following a hardware reset, IRQ
has a different funciton; it is held low during initializa-
tion and deasserts when the the MAX3108 is ready for
programming. Once IRQ goes high, the MAX3108 is
ready to be programmed through the I2C/SPI interface.
Set theMODE1{7}: IRQSel bit high to enable normal IRG
interrupt operation following a power-up or reset.
In polled mode, any register with a known reset value can
be polled to check whethere the MAX3108 is ready for
operation. If the controller gets a valid response from the
polled register, the the MAX3108 is ready for operation.
Interrupt Structure
Figure 13 shows the structure of the interrupt. There are
four interrupt source registers: ISR, LSR, STSInt, and
SpclCharInt. The interrupt sources are divided into top-
level and low-level interrupts. The top-level interrupts
typically occur more often and can be read out by the
host controller directly through ISR. The low-level inter-
rupts typically occur less often and their specific source
can be read out by the host controller through LSR,
STSInt, or SpclCharInt. The three LSBs of ISR point to
the low-level interrupt registers that contain the details of
the interrupt source.
Interrupt Enabling
Every interrupt bit of the four interrupt registers can be
enabled or masked through an associated interrupt
enable register bit. These are the IRQEn, LSRIntEn,
SpclChrIntEn, and STSIntEn registers. By default, all
interrupts are masked.
Interrupt Clearing
When an interrupt is pending (i.e., IRQ is asserted) and
ISR is read, both the ISR bits are cleared and the IRQ
output is deasserted. Low-level interrupt information
does not reassert IRQ for the same interrupt, but remains
stored in the low-level interrupt registers until each is
separately cleared. SpclCharInt and STSInt are clear-
on-read (COR). The LSR bits are only cleared when the
source of the interrupt is removed, not when LSR is read.
Figure 13. Simplified Interrupt Structure
7
6
5
4
3
2
1
0
ISR
8
[7]
IRQ
[0]
LOW-LEVEL INTERRUPTS
TOP-LEVEL INTERRUPTS
7
6
5
4
3
2
1
0
SpclCharInt
8
7
6
5
4
3
2
1
0
STSInt
8
7
6
5
4
3
2
1
0
LSR
8
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| MAX3109ETJ+ | 功能描述:UART 接口集成电路 Dual Serial UART with 128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX3109ETJ+T | 功能描述:UART 接口集成电路 Dual Serial UART with 128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX310C/D | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX310CPE | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX310CPE+ | 功能描述:多路器开关 IC 8:1 Unbuffered RF Video MUX RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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