參數(shù)資料
型號: ELANSC300-25VI
廠商: Advanced Micro Devices, Inc.
元件分類: 32位微控制器
英文描述: Highly Integrated, Low-Power, 32-Bit Microcontroller
中文描述: 高度集成,低功耗,32位微控制器
文件頁數(shù): 28/139頁
文件大?。?/td> 1388K
代理商: ELANSC300-25VI
28
élanSC300 Microcontroller Data Sheet
P R E L I M I N A R Y
Notes:
All inputs that have VCC clamp = 5 V are 5-V safe inputs regardless of their VCCIO.
Notes:
1. These outputs function as open-drain outputs in Normal Parallel Port mode, and function as CMOS drivers when the EPP-
MODE configuration bit is set.
2. The parallel port interface BUSY input must have an external pullup if the parallel port is to be used in EPP mode. If this pullup
is not present, accesses to the parallel port in EPP mode will lock up the system.
All inputs that have VCC clamp = 5 V are 5-V safe inputs regardless of their VCCIO.
Table 4.
Keyboard Interface
Signal Name
Pin No.
I/O
Type
Term
Drive
Type
Clock
Off
Reset State (volts)
Internal
CGA
5.0
VCCIO
VCC
Clamp
Spec.
Load
(pF)
Local
Bus
5.0
Max
ISA
5.0
8042CS [XTDAT]
75
O(STI)
B
1(–)
VSYS
VCC5
30
RC
A20GATE
78
79
I
I
PU
PU
5.0
5.0
5.0
5.0
5.0
5.0
VSYS
VSYS
VCC5
VCC5
Table 5.
Parallel Port Interface
Signal Name
Pin No.
I/O
Type
Term
Drive
Type
Clock
Off
Reset State (volts)
Internal
CGA
Bus
5.0
VCCIO
VCC
Clamp
Spec.
Load
(pF)
Local
Max
ISA
5.0
AFDT [X14OUT]
1
80
O
D
Last
state
Last
state
Last
state
Last
state
5.0
VCC5
VCC5
100
INIT [PCMCWE]
1
89
O
D
0.0
0.0
0.0
VCC5
VCC5
100
STRB
1
83
O
D
5.0
5.0
5.0
VCC5
VCC5
100
SLCTIN [PCMCOE]
1
84
O
D
5.0
5.0
5.0
VCC5
VCC5
100
ACK
88
I
5.0
5.0
5.0
VCC5
VCC5
BUSY
2
85
I
5.0
5.0
5.0
VCC5
VCC5
ERROR
86
I
5.0
5.0
5.0
VCC5
VCC5
PE
82
I
5.0
5.0
5.0
VCC5
VCC5
SLCT
87
I
5.0
5.0
5.0
VCC5
VCC5
PPDWE [PPDCS]
90
O
B
1(1)
5.0
5.0
5.0
VCC5
VCC5
30
PPOEN
91
O
B
1(1)
0.0
0.0
0.0
VCC5
VCC5
30
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