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参数资料
| 型号： | XR16V798IQ-0B-EVB |
| 厂商： | Exar Corporation |
| 文件页数： | 15/56页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XR16V798-B 100QFP |
| 设计资源： | XR17V798/794 Eval Board Schematic |
| 标准包装： | 1 |
| 系列： | * |
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XR16V798
22
HIGH PERFORMANCE 2.25V TO 3.6V OCTAL UART WITH FRACTIONAL BAUD RATE
REV. 1.0.1
3.1.1
The Global Interrupt Source Registers
The XR16V798 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 13 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 (if enabled) by the 798 when awakened from sleep if all 8 channels were placed in the sleep mode
previously.
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”INTERRUPT CLEARING:” ON PAGE 32. for interrupt clearing details.
TABLE 8: DEVICE CONFIGURATION REGISTERS
ADDRESS
[A7:A0]
READ/
WRITE
REGISTER
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x80
R
INT Source
UART 7
UART 6
UART 5
UART 4
UART 3
UART 2
UART 1
UART 0
0x81
R
INT 1
UART 2
bit 1
source
bit 0
UART 1
bit 2
interrupt
bit 1
source
bit 0
UART 0
bit 2
interrupt
bit 1
source
bit 0
0x82
R
INT 2
UART 5
bit 0
UART 4
bit 2
interrupt
bit 1
source
bit 0
UART 3
bit 2
interrupt
bit 1
source
bit 0
UART 2
bit 2
0x83
R
INT 3
UART 7
bit 2
interrupt
bit 1
source
bit 0
UART 6
bit 2
interrupt
bit 1
source
bit 0
UART 5
bit 2
source
bit 1
0x84
R/W
TIMER
CTRL
0
clock
source
function
select
start timer
enable
timer INT
0x85
R
TIMER
0
0x86
R/W
TIMER LSB
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
0x87
R/W
TIMER MSB
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
0x88
R/W
8X MODE
UART 7
UART 6
UART 5
UART 4
UART 3
UART 2
UART 1
UART 0
0x89
R
REGA
0
0x8A
W
RESET
Reset
UART 7
Reset
UART 6
Reset
UART 5
Reset
UART 4
Reset
UART 3
Reset
UART 2
Reset
UART 1
Reset
UART 0
0x8B
R/W
SLEEP
Enable
sleep
UART 7
Enable
sleep
UART 6
Enable
sleep
UART 5
Enable
sleep
UART 4
Enable
sleep
UART 3
Enable
sleep
UART 2
Enable
sleep
UART 1
Enable
sleep
UART 0
0x8C
R
DREV
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
0x8D
R
DVID
0
1
0
1
0
0x8E
R/W
REGB
0
write to all
UARTs
INT3
[0x00]
INT2
[0x00]
INT1
[0x00]
INT0
[0x00]
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XR16V798IQ-F | 功能描述:UART 接口集成电路 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 |
| XR16V798IQTR-F | 制造商:Exar Corporation 功能描述:UART 8-CH 64Byte FIFO 2.5V/3.3V 100-Pin PQFP T/R |
| XR-1790 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Audio Schematic |
| XR17C152 | 制造商:EXAR 制造商全称:EXAR 功能描述:5V PCI BUS DUAL UART |
| XR17C152CM | 制造商:EXAR 制造商全称:EXAR 功能描述:5V PCI BUS DUAL UART |
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