參數(shù)資料
型號： XR88C681P/40-F
廠商： Exar Corporation
文件頁數(shù)： 92/101頁
文件大?。?/td> 0K
描述： IC UART CMOS DUAL 40PDIP
標(biāo)準(zhǔn)包裝： 9
特點(diǎn)： *
通道數(shù)： 2，DUART
FIFO's： 1 字節(jié)，3 字節(jié)
電源電壓： 4.75 V ~ 5.25 V
帶并行端口： 是
帶CMOS： 是
安裝類型： 通孔
封裝/外殼： 40-DIP（0.600"，15.24mm）
供應(yīng)商設(shè)備封裝： 40-PDIP
包裝： 管件
其它名稱： 1016-1640
XR88C681P/40-F-ND
XR88C681
90
Rev. 2.11
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
BRG Set
Select
Counter/Timer #1 Mode and Source
Delta IP3
Interrupt
Delta IP2
Interrupt
Delta IP1
Interrupt
Delta IP0
Interrupt
0 = Set1
1 = Set2
See
Table 7
0 = OFF
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = ON
0 = OFF
1 = ON
Table 35. Auxiliary Control Register: ACR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Delta IP3
Delta IP2
Delta IP1
Delta IP0
IP3
IP2
IP1
IP0
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = Low
1 = High
0 = Low
1 = High
0 = Low
1 = High
0 = Low
1 = High
Table 36. Input Port Configuration Register , IPCR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Input Port
Change
Delta Break
B
RXRDY/
FFULLB
TXRDYB
Counter #1
Ready
Delta Break
A
RXRDY/
FFULLA
TXRDYA
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
0 = No
1 = Yes
Table 37. Interrupt Status Register, ISR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Input Port
Change
Delta Break
B
RXRDY/
FFULLB
TXRDYB
Counter #1
Ready
Delta Break
A
RXRDY/
FFULLA
TXRDYA
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
0 = Off
1 = On
Table 38. Interrupt Mask Register, IMR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
C/T(15)
C/T(14)
C/T(13)
C/T(12)
C/T(11)
C/T(10)
C/T(9)
C/T(8)
Table 39. Counter/Timer Upper Byte Register, CTUR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
C/T(7)
C/T(6)
C/T(5)
C/T(4)
C/T(3)
C/T(2)
C/T(1)
C/T(0)
Table 40. Counter/Timer Lower Byte Register, CTLR
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
IVR(7)
IVR(6)
IVR(5)
IVR(4)
IVR(3)
IVR(2)
IVR(1)
IVR(0)
Table 41. Interrupt Vector Register: IVR
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