参数资料
型号: XR21V1414IM48-F
厂商: Exar Corporation
文件页数: 22/34页
文件大小: 0K
描述: IC UART FIFO USB QUAD 48TQFP
产品培训模块: UART Product Overview
XR21V141x Full-Speed USB UART Family
特色产品: XR21V141x Full-Speed USB UART
标准包装: 250
特点: *
通道数: 1,UART
FIFO's: 128 字节
规程: USB 2.0
电源电压: 3.3V
带自动流量控制功能:
安装类型: 表面贴装
封装/外壳: 48-TQFP
供应商设备封装: 48-TQFP(7x7)
包装: 托盘
配用: 1016-1303-ND - EVAL BOARD FOR XR21V1414IM
其它名称: 1016-1304
XR21V1414
29
REV. 1.3.0
4-CH FULL-SPEED USB UART
CUSTOM_INT_PACKET[1]: GPIO2
Logic 0 = Disable GPIO2 status in custom interrupt packet.
Logic 1 = Enable GPIO2 status in custom interrupt packet.
CUSTOM_INT_PACKET[2]: Reserved
This bit is reserved and should remain ’0’.
CUSTOM_INT_PACKET[3]: GPIO0
Logic 0 = Disable GPIO0 status in custom interrupt packet.
Logic 1 = Enable GPIO0 status in custom interrupt packet.
CUSTOM_INT_PACKET[4]: GPIO3
Logic 0 = Disable GPIO3 status in custom interrupt packet.
Logic 1 = Enable GPIO3 status in custom interrupt packet.
CUSTOM_INT_PACKET[5]: GPIO4
Logic 0 = Disable GPIO4 status in custom interrupt packet.
Logic 1 = Enable GPIO4 status in custom interrupt packet.
CUSTOM_INT_PACKET[6]: GPIO5
Logic 0 = Disable GPIO5 status in custom interrupt packet.
Logic 1 = Enable GPIO5 status in custom interrupt packet.
CUSTOM_INT_PACKET[7]: Reserved
This bit is reserved and should remain ’0’.
TABLE 16: INTERRUPT PACKET FORMAT
OFFSET
FIELD
SIZE
(BYTES)
VALUE
DESCRIPTION
0
bmRequestType
1
8’b10100001
D7 = Device-to-host direction
D6:5 = Class Type
D4-0: = Interface Recipient
1
bNotification
1
8’h20
Defined encoding for SERIAL_STATE
2
wValue
2
16’h0000
4
wIndex
2
16’h0000
D15-8 = Reserved (0)
D7-0 = Interface number, 8’h00 for the CDC Com-
mand Interface
6
wLength
2
16’h0002
2 bytes of transferred data
8
Data
2
Standard
int_status
(See
Table 17
or
Table 18)
D15-7 = Reserved (0)
D6 = bOverRun
D5 = bParity
D4 = bFraming
D3 = bRingSignal (RI)
D2 = bBreak
D1 = bTxCarrier (DSR)
D0 = bRxCarrier (CD)
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