XR16C872 Ver la hoja de datos (PDF) - Exar Corporation
Número de pieza
componentes Descripción
Lista de partido
XR16C872 Datasheet PDF : 60 Pages
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Preliminary
XR16C872
D0-D7
A0-A2
A8-A15
To
CPU Bus
IOR#
IOW#
IOCHRDY
TC
IRQB
(UART-B)
IRQA
(UART-A)
IRQC
(1284 Port)
GND
AEN#
IRQ3
IRQ4
IRQ7
DREQ
(1284 Port)
DREQ3
DACK#
(1284 Port)
DACK3#
VCC
MAN#
S1
S2
S3
S4
Mapped with Address A8-A15:
S5
* UART-A at 0x7F00-7F08 & IRQA
* UART-B at 0x5F00-6F08 & IRQB
* 1284 Port at 0x6F00-6F08 with IRQC, DREQ and DACK# GND
30-21
2-4
5-12
19
99
100
20
91
92
93
A0-A2
A3-A10
94
95
96
97
XR16C872
89
88
87
86
81
80
79
78
85
84
83
82
UART-A
UART-B
1284
Parallel
Port
74
18
17
Port
16 Configuration
Logic
15
14
Figure 3. Manual Configuration Interface in Embedded Application
Rev. P1.00
15
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