參數(shù)資料
型號(hào): XR16C872
廠商: Exar Corporation
英文描述: Dual UART with 1284 Parallel Port and Plug-and-Play(PnP) Controller(雙通用異步接收器/發(fā)送器(帶1284雙向并行端口和即插即用控制器))
中文描述: 雙UART)與1284并行端口,插頭插即用(PnP)功能控制器(雙通用異步接收器/發(fā)送器(帶1284雙向并行端口和即插即用控制器)
文件頁(yè)數(shù): 15/60頁(yè)
文件大?。?/td> 314K
代理商: XR16C872
XR16C872
15
Rev. P1.00
Preliminary
MAN#
74
S3
S4
16
15
S5
14
GND
S1
S2
18
17
VCC
To
CPU Bus
Mapped with Address A8-A15:
* UART-A
at 0x7F00-7F08 & IRQA
* UART-B
at 0x5F00-6F08 & IRQB
* 1284 Port at 0x6F00-6F08 with IRQC, DREQ and DACK#
XR16C872
D0-D7
A0-A2
A8-A15
IOR#
IOW#
IOCHRDY
TC
Port
Configuration
Logic
IRQ3
IRQ4
92
93
IRQB
(UART-B)
IRQA
(UART-A)
94
95
96
97
89
88
87
86
IRQC
(1284 Port)
IRQ7
DREQ
(1284 Port)
DACK#
(1284 Port)
81
80
79
78
84
83
82
85
DREQ3
DACK3#
UART-A
UART-B
1284
Parallel
Port
GND
AEN#
91
20
100
99
19
2-4
5-12
30-21
A0-A2
A3-A10
Figure 3. Manual Configuration Interface in Embedded Application
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