参数资料
| 型号： | XR16L788CQ-F |
| 厂商： | Exar Corporation |
| 文件页数： | 15/54页 |
| 文件大小： | 0K |
| 描述： | IC UART 64B 3.3V OCTAL 100QFP |
| 标准包装： | 66 |
| 特点： | * |
| 通道数： | 8 |
| FIFO's： | 64 字节 |
| 规程： | RS485 |
| 电源电压： | 2.97 V ~ 5.5 V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-BQFP |
| 供应商设备封装： | 100-QFP（14x20） |
| 包装： | 托盘 |
| 其它名称： | 1016-1283 |
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XR16L788
22
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
REV. 1.2.3
3.1.1
The Global Interrupt Source Registers
The XR16L788 has a global interrupt source register set that consists of 4 consecutive registers [INT0, INT1,
INT2 and INT3]. The four registers are in the device configuration register address space.
All four registers default to logic zero (as indicated in square braces) for no interrupt pending. All 8 channel
interrupts are enabled or disabled in each channel’s IER register. INT0 shows individual status for each
channel while INT1, INT2 and INT3 show the details of the source of each channel’s interrupt with its unique 3-
bit encoding. Figure 14 shows the 4 interrupt registers in sequence for clarity. The 16-bit timer and sleep
wake-up interrupts are masked in the device configuration registers, TIMERCNTL and SLEEP. An interrupt is
generated by the 788 when awakened from sleep if all 8 channels were placed in the sleep mode previously.
Reading INT0 will clear this wake-up interrupt.
Each bit gives an indication of the channel that has requested for service. For example, bit-0 represents
channel 0 and bit-7 indicates channel 7. Logic one indicates the channel N [7:0] has called for service. The
interrupt bit clears after reading the appropriate register of the interrupting UART channel register (ISR, LSR
and MSR). See Table 13 for interrupt clearing details.
3.1.1.1
INT0 Channel Interrupt Indicator:
3.1.1.2
INT1, INT2 and INT3 Interrupt Source Locator
INT3, INT2 and INT1 provide a 24-bit (3 bits per channel) encoded interrupt indicator. Table 9 shows the 3 bit
encoding and their priority order. The 16-bit Timer time-out interrupt will show up only as a channel 0 interrupt.
For other channels, interrupt 7 is reserved.
.
INT3
[0x00]
INT2
[0x00]
INT1
[0x00]
INT0
[0x00]
FIGURE 14. THE GLOBAL INTERRUPT REGISTERS, INT0, INT1, INT2 AND INT3
INT0 Register
Individual UART Channel Interrupt Status
Ch-7
Ch-6
Ch-5
Ch-4
Ch-3
Ch-2
Ch-1
Ch-0
Bit-7
Bit-6
Bit-5
Bit-4
Bit-3
Bit-2
Bit-1
Bit-0
Channel-7
Channel-6
Channel-5
Channel-4
Channel-3
Channel-2
Channel-1
Channel-0
INT2 Register
INT1 Register
INT3 Register
Interrupt Registers,
INT0, INT1, INT2 and INT3
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
Bit
1
Bit
2
Bit
0
INT0 Register
Bit-0
Bit-1
Bit-2
Bit-3
Bit-7
Bit-4
Bit-5
Bit-6
Ch-6
Ch-7
Ch-5 Ch-4
Ch-1 Ch-0
Ch-3 Ch-2
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相关代理商/技术参数 |
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| XR16L788CQTR-F | 功能描述:UART 接口集成电路 3.3V OCTAL UART 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 |
| XR16L788IQ | 制造商:Exar Corporation 功能描述:3.3V OCTAL UART |
| XR16L788IQ-F | 功能描述:UART 接口集成电路 2.97V-5.5V 64B FIFO temp -45 to 85C 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 |
| XR16L788IQTR-F | 功能描述:UART 接口集成电路 3.3V OCTAL UART 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 |
| XR16M2550 | 制造商:EXAR 制造商全称:EXAR 功能描述:HIGH PERFORMANCE LOW VOLTAGE DUART WITH 16-BYTE FIFO |
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